diff --git a/v2rayN/v2rayN/Handler/LazyConfig.cs b/v2rayN/v2rayN/Handler/LazyConfig.cs
index 52b0a1af..88f02d38 100644
--- a/v2rayN/v2rayN/Handler/LazyConfig.cs
+++ b/v2rayN/v2rayN/Handler/LazyConfig.cs
@@ -1,4 +1,4 @@
-using v2rayN.Base;
+using System.Runtime.Intrinsics.X86;
 using v2rayN.Mode;
 
 namespace v2rayN.Handler
@@ -176,6 +176,15 @@ namespace v2rayN.Handler
             return SqliteHelper.Instance.Table<ProfileItem>().FirstOrDefault(it => it.indexId == indexId);
         }
 
+        public ProfileItem? GetProfileItemRemarks(string Remarks)
+        {
+            if (Utils.IsNullOrEmpty(Remarks))
+            {
+                return null;
+            }
+            return SqliteHelper.Instance.Table<ProfileItem>().FirstOrDefault(it => it.remarks == Remarks);
+        }
+
         public ProfileItem? GetProfileItemViaRemarks(string remarks)
         {
             if (Utils.IsNullOrEmpty(remarks))
diff --git a/v2rayN/v2rayN/Handler/ServerAutoSwitch.cs b/v2rayN/v2rayN/Handler/ServerAutoSwitch.cs
index 06faf233..5f526b84 100644
--- a/v2rayN/v2rayN/Handler/ServerAutoSwitch.cs
+++ b/v2rayN/v2rayN/Handler/ServerAutoSwitch.cs
@@ -1,16 +1,21 @@
 using DynamicData;
+using Splat;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net;
 using System.Text;
 using System.Threading.Tasks;
+using System.Windows;
 using System.Windows.Interop;
 using v2rayN.Mode;
+using v2rayN.Resx;
+using v2rayN.ViewModels;
 
 namespace v2rayN.Handler
 {
     public delegate void SetDefaultServerDelegate(string s);
+    public delegate void SetTestResultDelegate(string i, string d, string s);
     public class TestResultItem
     {
         public string indexId { get; set; }
@@ -24,6 +29,8 @@ namespace v2rayN.Handler
         private NoticeHandler? _noticeHandler;
         private Task taskmain = null;
         private SetDefaultServerDelegate setDefaultServerDelegates;
+        private SetTestResultDelegate setTestResultDelegates;
+        private SetAutoSwitchTogDelegate _setAutoSwitchTog;
         public ServerAutoSwitch()
         {
            
@@ -36,12 +43,20 @@ namespace v2rayN.Handler
         {
             bStop = true;
             if(taskmain!=null)
-                taskmain.Wait();
+               taskmain.Wait();
             taskmain = null;
         }
         public void SetDelegate(SetDefaultServerDelegate s = null) {
             this.setDefaultServerDelegates = s;
         }
+        public void SetDelegate(SetTestResultDelegate s = null)
+        {
+            this.setTestResultDelegates = s;
+        }
+        public void SetDelegate(SetAutoSwitchTogDelegate s = null)
+        {
+            this._setAutoSwitchTog = s;
+        }
         private void UpdateHandler(bool notify, string msg)
         {
         }
@@ -62,6 +77,7 @@ namespace v2rayN.Handler
                     indexId = id,
                     latency = i
                 });
+                setTestResultDelegates(id, dl, speed);
             }
         }
       
@@ -77,56 +93,114 @@ namespace v2rayN.Handler
 
             taskmain = Task.Run(() =>
             {
-                int iFailTimeMax = 30;
-                int iTestInterval = iFailTimeMax / 3;
+                _noticeHandler = Locator.Current.GetService<NoticeHandler>();
                 DownloadHandle downloadHandle = new();
                 long failtimestart = 0;
+                int LastServerSelectMode = -1;
                 List<ProfileItem> listprofile = new List<ProfileItem>();
                 while (!bStop)
                 {
+                    var _config = LazyConfig.Instance.GetConfig();
+                    int iFailTimeMax = LazyConfig.Instance.GetConfig().autoSwitchItem.FailTimeMax;
+                    int iTestInterval = iFailTimeMax / 3;
+                    int ServerSelectMode = LazyConfig.Instance.GetConfig().autoSwitchItem.ServerSelectMode;
+                    int AutoSwitchMode = LazyConfig.Instance.GetConfig().autoSwitchItem.mode;
+
                     Thread.Sleep(iTestInterval * 1000);
                     int res = downloadHandle.RunAvailabilityCheck(null).Result;
+                    if (!bStop)
+                        Task.Run(() => setTestResultDelegates(_config.indexId, res.ToString(), ""));
+                    else
+                        break;
                     if (res <= 0)
                     {
-                        _noticeHandler?.SendMessage("Current server test failed!", true);
+                        _noticeHandler?.SendMessage("Current server test failed!",true);
                         if (failtimestart == 0)
                             failtimestart = GetTimestamp(DateTime.Now);
                         if (GetTimestamp(DateTime.Now) - failtimestart >= iFailTimeMax)
                         {
-                            if (testResultItems.Count == 0 || listprofile.Count == 0)
-                                listprofile = LazyConfig.Instance.ProfileItemsAutoSwitch();
-                            if (listprofile.Count > 0)
+                            if (testResultItems.Count == 0 || listprofile.Count == 0 || ServerSelectMode!= LastServerSelectMode)
                             {
-                                var _config = LazyConfig.Instance.GetConfig();
+                                testResultItems.Clear();
+                                listprofile = LazyConfig.Instance.ProfileItemsAutoSwitch();
+                            }
+
+                            if (listprofile.Count >= 2)
+                            {
+
                                 if (testResultItems.Count == 0)
                                 {
                                     var _coreHandler = new CoreHandler(_config, (bool x, string y) => { });
-                                    new SpeedtestHandler(_config, _coreHandler, listprofile, Mode.ESpeedActionType.Tcping, UpdateSpeedtestHandler);
-                                    while (testResultItems.Count < listprofile.Count)
+
+                                    if (ServerSelectMode == 0 || ServerSelectMode == 1)
+                                        new SpeedtestHandler(_config, _coreHandler, listprofile, Mode.ESpeedActionType.Tcping, UpdateSpeedtestHandler);
+                                    else if (ServerSelectMode == 2)
+                                        new SpeedtestHandler(_config, _coreHandler, listprofile, Mode.ESpeedActionType.Realping, UpdateSpeedtestHandler);
+                                    if (bStop) break;
+                                    while (!bStop && testResultItems.Count < listprofile.Count)
                                     {
                                         Thread.Sleep(20);
                                     }
-                                }
+                                    if (bStop) break;
+                                    if (ServerSelectMode == 0)
+                                    {
+                                        List<TestResultItem> templist = new List<TestResultItem>();
 
-                                for(int i=testResultItems.Count-1; i>=0; i--) {
-                                    if (testResultItems[i].latency <= 0 || testResultItems[i].indexId == _config.indexId)
-                                        testResultItems.RemoveAt(i);
+                                        foreach (var item in listprofile)
+                                        {
+                                            var item2 = testResultItems.Find(x => x.indexId == item.indexId);
+                                            if (item2 != null)
+                                                templist.Add(item2);
+                                        }
+                                        testResultItems = templist;
+                                    }
                                 }
-
-                                if (testResultItems.Count > 0)
+                                if (ServerSelectMode == 0)
                                 {
-                                    testResultItems.Sort((x, y) => x.latency.CompareTo(y.latency));
-                                    setDefaultServerDelegates(testResultItems[0].indexId);
-                                    //if (ConfigHandler.SetDefaultServerIndex(ref _config, testResultItems[0].indexId) == 0)
-                                    //{
-                                    //    RefreshServers();
-                                    //    Reload();
-                                    //}
-       
-                                    testResultItems.RemoveAt(0);
+                                    for (int i = testResultItems.Count - 1; i >= 0; i--)
+                                    {
+                                        if (testResultItems[i].latency <= 0 && testResultItems[i].indexId != _config.indexId)
+                                            testResultItems.RemoveAt(i);
+                                    }
+                                    if (testResultItems.Count > 1)
+                                    {
+                                        int j = testResultItems.FindIndex(x => x.indexId == _config.indexId);
+                                        int k = j + 1;
+                                        if (k > testResultItems.Count - 1)
+                                            k = 0;
+                                        setDefaultServerDelegates(testResultItems[k].indexId);
+                                        testResultItems.RemoveAt(j);
+                                        if (testResultItems.Count <= 1)
+                                            testResultItems.Clear();
+                                    }
+                                    else
+                                        testResultItems.Clear();
 
                                 }
+                                else if (ServerSelectMode == 1 || ServerSelectMode == 2)
+                                {
+                                    for (int i = testResultItems.Count - 1; i >= 0; i--)
+                                    {
+                                        if (testResultItems[i].latency <= 0 || testResultItems[i].indexId == _config.indexId)
+                                            testResultItems.RemoveAt(i);
+                                    }
+
+                                    if (testResultItems.Count > 0)
+                                    {
+                                        testResultItems.Sort((x, y) => x.latency.CompareTo(y.latency));
+                                        setDefaultServerDelegates(testResultItems[0].indexId);
+                                        testResultItems.RemoveAt(0);
+                                    }
+                                }
+
                             }
+                            else
+                            {
+                                _setAutoSwitchTog(false);
+                                _config.autoSwitchItem.EnableAutoSwitch = false;
+                                MessageBox.Show(ResUI.stopSwtichWarn);                           
+                            }
+                                
                         }
                     }
                     else
@@ -135,7 +209,7 @@ namespace v2rayN.Handler
                         testResultItems.Clear();
                         listprofile.Clear();
                     }
-
+                    LastServerSelectMode = ServerSelectMode;
                 }
             });
         }
diff --git a/v2rayN/v2rayN/Handler/UpdateHandle.cs b/v2rayN/v2rayN/Handler/UpdateHandle.cs
index 6236c58f..6f41b45c 100644
--- a/v2rayN/v2rayN/Handler/UpdateHandle.cs
+++ b/v2rayN/v2rayN/Handler/UpdateHandle.cs
@@ -167,6 +167,7 @@ namespace v2rayN.Handler
 
             Task.Run(async () =>
             {
+                var listprofile = LazyConfig.Instance.ProfileItemsAutoSwitch();
                 foreach (var item in subItem)
                 {
                     string id = item.id.TrimEx();
@@ -275,6 +276,16 @@ namespace v2rayN.Handler
                             Logging.SaveLog("FailedImportSubscription");
                             Logging.SaveLog(result);
                         }
+                        else
+                        {
+                            foreach (var item3 in listprofile)
+                            {
+                                var item2 = LazyConfig.Instance.GetProfileItemRemarks(item3.remarks);
+                                item2.autoSwitch = true;
+                                SqliteHelper.Instance.Update(item2);
+                            }
+                            ConfigHandler.SaveConfig(_config);
+                        }
                         _updateFunc(false,
                             ret > 0
                                 ? $"{hashCode}{ResUI.MsgUpdateSubscriptionEnd}"
@@ -284,6 +295,8 @@ namespace v2rayN.Handler
                 }
 
                 _updateFunc(true, $"{ResUI.MsgUpdateSubscriptionEnd}");
+
+
             });
         }
 
diff --git a/v2rayN/v2rayN/Resx/ResUI.Designer.cs b/v2rayN/v2rayN/Resx/ResUI.Designer.cs
index 34e4dce0..8f25248c 100644
--- a/v2rayN/v2rayN/Resx/ResUI.Designer.cs
+++ b/v2rayN/v2rayN/Resx/ResUI.Designer.cs
@@ -1815,6 +1815,15 @@ namespace v2rayN.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 Because the number of selected switching servers is less than the minimum value of 2, stop automatic switching! 的本地化字符串。
+        /// </summary>
+        public static string stopSwtichWarn {
+            get {
+                return ResourceManager.GetString("stopSwtichWarn", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 Group please leave blank here 的本地化字符串。
         /// </summary>
@@ -2770,6 +2779,24 @@ namespace v2rayN.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 Lowest RealPing Latency Server 的本地化字符串。
+        /// </summary>
+        public static string TbSettingsLowestRealPingServer {
+            get {
+                return ResourceManager.GetString("TbSettingsLowestRealPingServer", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   查找类似 Lowest TCPing Latency Server 的本地化字符串。
+        /// </summary>
+        public static string TbSettingsLowestTCPingServer {
+            get {
+                return ResourceManager.GetString("TbSettingsLowestTCPingServer", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 sing-box Mux Protocol 的本地化字符串。
         /// </summary>
@@ -2806,6 +2833,15 @@ namespace v2rayN.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 Next Server 的本地化字符串。
+        /// </summary>
+        public static string TbSettingsNextServer {
+            get {
+                return ResourceManager.GetString("TbSettingsNextServer", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 Auth pass 的本地化字符串。
         /// </summary>
@@ -2833,6 +2869,15 @@ namespace v2rayN.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 Switch when server cannot connect 的本地化字符串。
+        /// </summary>
+        public static string TbSettingsServerFail {
+            get {
+                return ResourceManager.GetString("TbSettingsServerFail", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 Switch to server 的本地化字符串。
         /// </summary>
@@ -3292,6 +3337,15 @@ namespace v2rayN.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 The number of selected switching servers must be greater than or equal to 2 to start switching! 的本地化字符串。
+        /// </summary>
+        public static string turnOnSwitchWarn {
+            get {
+                return ResourceManager.GetString("turnOnSwitchWarn", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 Ungrouped 的本地化字符串。
         /// </summary>
diff --git a/v2rayN/v2rayN/Resx/ResUI.fa-Ir.resx b/v2rayN/v2rayN/Resx/ResUI.fa-Ir.resx
index afb7cac6..d10d4560 100644
--- a/v2rayN/v2rayN/Resx/ResUI.fa-Ir.resx
+++ b/v2rayN/v2rayN/Resx/ResUI.fa-Ir.resx
@@ -1162,4 +1162,22 @@
   <data name="TbSettingsUseSystemHosts" xml:space="preserve">
     <value>از هاست های سیستم استفاده کنید</value>
   </data>
+  <data name="TbSettingsNextServer" xml:space="preserve">
+    <value>سرور بعدی</value>
+  </data>
+  <data name="TbSettingsLowestTCPingServer" xml:space="preserve">
+    <value>سرور با کمترین تاخیر TCPing</value>
+  </data>
+  <data name="TbSettingsLowestRealPingServer" xml:space="preserve">
+    <value>کمترین سرور RealPing Latency</value>
+  </data>
+  <data name="TbSettingsServerFail" xml:space="preserve">
+    <value>هنگامی که سرور نمی تواند متصل شود، تغییر دهید</value>
+  </data>
+  <data name="stopSwtichWarn" xml:space="preserve">
+    <value>از آنجایی که تعداد سرورهای سوئیچینگ انتخابی کمتر از مقدار حداقل 2 است، تعویض خودکار را متوقف کنید!</value>
+  </data>
+  <data name="turnOnSwitchWarn" xml:space="preserve">
+    <value>برای شروع سوئیچینگ، تعداد سرورهای سوئیچینگ انتخابی باید بیشتر یا مساوی 2 باشد!</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/v2rayN/Resx/ResUI.resx b/v2rayN/v2rayN/Resx/ResUI.resx
index bce95c49..6be9c4ed 100644
--- a/v2rayN/v2rayN/Resx/ResUI.resx
+++ b/v2rayN/v2rayN/Resx/ResUI.resx
@@ -205,7 +205,7 @@
     <value>Type</value>
   </data>
   <data name="LvAutoSwitch" xml:space="preserve">
-  <value>AutoSwitch</value>
+    <value>AutoSwitch</value>
   </data>
   <data name="LvSubscription" xml:space="preserve">
     <value>Subs group</value>
@@ -1198,4 +1198,22 @@
   <data name="TbLocalAddress" xml:space="preserve">
     <value>Address(Ip,Ipv6)</value>
   </data>
+  <data name="TbSettingsNextServer" xml:space="preserve">
+    <value>Next Server</value>
+  </data>
+  <data name="TbSettingsLowestTCPingServer" xml:space="preserve">
+    <value>Lowest TCPing Latency Server</value>
+  </data>
+  <data name="TbSettingsLowestRealPingServer" xml:space="preserve">
+    <value>Lowest RealPing Latency Server</value>
+  </data>
+  <data name="TbSettingsServerFail" xml:space="preserve">
+    <value>Switch when server cannot connect</value>
+  </data>
+  <data name="stopSwtichWarn" xml:space="preserve">
+    <value>Because the number of selected switching servers is less than the minimum value of 2, stop automatic switching!</value>
+  </data>
+  <data name="turnOnSwitchWarn" xml:space="preserve">
+    <value>The number of selected switching servers must be greater than or equal to 2 to start switching!</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/v2rayN/Resx/ResUI.ru.resx b/v2rayN/v2rayN/Resx/ResUI.ru.resx
index 448b6a48..7f57cd53 100644
--- a/v2rayN/v2rayN/Resx/ResUI.ru.resx
+++ b/v2rayN/v2rayN/Resx/ResUI.ru.resx
@@ -1162,4 +1162,22 @@
   <data name="TbSettingsUseSystemHosts" xml:space="preserve">
     <value>Используйте системные хосты</value>
   </data>
+  <data name="TbSettingsNextServer" xml:space="preserve">
+    <value>Следующий сервер</value>
+  </data>
+  <data name="TbSettingsLowestTCPingServer" xml:space="preserve">
+    <value>Сервер с наименьшей задержкой TCPing</value>
+  </data>
+  <data name="TbSettingsLowestRealPingServer" xml:space="preserve">
+    <value>Сервер с самой низкой задержкой RealPing</value>
+  </data>
+  <data name="TbSettingsServerFail" xml:space="preserve">
+    <value>Переключиться, когда сервер не может подключиться</value>
+  </data>
+  <data name="stopSwtichWarn" xml:space="preserve">
+    <value>Поскольку количество выбранных коммутационных серверов меньше минимального значения 2, остановите автоматическое переключение!</value>
+  </data>
+  <data name="turnOnSwitchWarn" xml:space="preserve">
+    <value>Для начала переключения количество выбранных коммутационных серверов должно быть больше или равно 2!</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/v2rayN/Resx/ResUI.zh-Hans.resx b/v2rayN/v2rayN/Resx/ResUI.zh-Hans.resx
index 9b034116..54af3b51 100644
--- a/v2rayN/v2rayN/Resx/ResUI.zh-Hans.resx
+++ b/v2rayN/v2rayN/Resx/ResUI.zh-Hans.resx
@@ -1195,4 +1195,22 @@
   <data name="TbLocalAddress" xml:space="preserve">
     <value>Address(Ip,Ipv6)</value>
   </data>
+  <data name="TbSettingsNextServer" xml:space="preserve">
+    <value>下一个服务器</value>
+  </data>
+  <data name="TbSettingsLowestTCPingServer" xml:space="preserve">
+    <value>最低TCPing延迟服务器</value>
+  </data>
+  <data name="TbSettingsLowestRealPingServer" xml:space="preserve">
+    <value>最低真连接延迟服务器</value>
+  </data>
+  <data name="TbSettingsServerFail" xml:space="preserve">
+    <value>服务器无法连接时切换</value>
+  </data>
+  <data name="stopSwtichWarn" xml:space="preserve">
+    <value>因为选择的切换服务器数量小于最低值2,停止自动切换!</value>
+  </data>
+  <data name="turnOnSwitchWarn" xml:space="preserve">
+    <value>选择的切换服务器数量必须大于等于2才能启动切换!</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/v2rayN/Resx/ResUI.zh-Hant.resx b/v2rayN/v2rayN/Resx/ResUI.zh-Hant.resx
index 7dd4ba10..38be51bd 100644
--- a/v2rayN/v2rayN/Resx/ResUI.zh-Hant.resx
+++ b/v2rayN/v2rayN/Resx/ResUI.zh-Hant.resx
@@ -1136,7 +1136,7 @@
     <value>IP 或 IP CIDR</value>
   </data>
   <data name="LvAutoSwitch" xml:space="preserve">
-    <value>自動切換</value>
+    <value>切換</value>
   </data>
   <data name="TbSettingsAutoSwitch" xml:space="preserve">
     <value>自動切換設定</value>
@@ -1180,4 +1180,22 @@
 	<data name="TbSettingsEnableIPv6Address" xml:space="preserve">
     <value>啟用IPv6</value>
   </data>
+  <data name="TbSettingsNextServer" xml:space="preserve">
+    <value>下一个服务器</value>
+  </data>
+  <data name="TbSettingsLowestTCPingServer" xml:space="preserve">
+    <value>TCPing 延遲最低的伺服器</value>
+  </data>
+  <data name="TbSettingsLowestRealPingServer" xml:space="preserve">
+    <value>最低 RealPing 延遲伺服器</value>
+  </data>
+  <data name="TbSettingsServerFail" xml:space="preserve">
+    <value>伺服器無法連接時切換</value>
+  </data>
+  <data name="stopSwtichWarn" xml:space="preserve">
+    <value>由於選擇的切換伺服器數量小於最小值2，因此停止自動切換！</value>
+  </data>
+  <data name="turnOnSwitchWarn" xml:space="preserve">
+    <value>選定的切換伺服器數量必須大於或等於2才能開始切換！</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs b/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs
index 9a998a5d..99a4de24 100644
--- a/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/MainWindowViewModel.cs
@@ -13,6 +13,7 @@ using System.Reactive;
 using System.Reactive.Linq;
 using System.Text;
 using System.Windows;
+using System.Windows.Controls;
 using System.Windows.Media;
 using v2rayN.Handler;
 using v2rayN.Mode;
@@ -22,6 +23,7 @@ using v2rayN.Views;
 namespace v2rayN.ViewModels
 {
     public delegate void SetAutoSwitchTogDelegate(bool b);
+    public delegate void SetAutoSwitchAllDelegate(bool b);
     public class MainWindowViewModel : ReactiveObject
     {
         #region private prop
@@ -37,10 +39,15 @@ namespace v2rayN.ViewModels
         private Dictionary<string, bool> _dicHeaderSort = new();
         private Action<EViewAction> _updateView;
         private SetAutoSwitchTogDelegate _setAutoSwitchTog;
+        private SetAutoSwitchAllDelegate _setAutoSwitchAll;
         public void SetDelegate(SetAutoSwitchTogDelegate s = null)
         {
             this._setAutoSwitchTog = s;
         }
+        public void SetDelegate2(SetAutoSwitchAllDelegate s = null)
+        {
+            this._setAutoSwitchAll = s;
+        }
         #endregion private prop
 
         #region ObservableCollection
@@ -254,9 +261,12 @@ namespace v2rayN.ViewModels
         [Reactive]
         public string CurrentLanguage { get; set; }
 
+        [Reactive]
+        public bool autoSwitchCheckAll { get; set; }
+
         #endregion UI
 
-        
+
 
         public ServerAutoSwitch ServerAutoSwitchs= new ServerAutoSwitch();
 
@@ -605,7 +615,9 @@ namespace v2rayN.ViewModels
             Reload();
             ChangeSystemProxyStatus(_config.sysProxyType, true);
             ServerAutoSwitchs.SetDelegate(SetDefaultServer);
-            if(_config.autoSwitchItem.EnableAutoSwitch)
+            ServerAutoSwitchs.SetDelegate(UpdateSpeedtestHandler);
+            ServerAutoSwitchs.SetDelegate(_setAutoSwitchTog);
+            if (_config.autoSwitchItem.EnableAutoSwitch)
                 ServerAutoSwitchs.Start();
         }
 
@@ -614,7 +626,7 @@ namespace v2rayN.ViewModels
             Application.Current.Dispatcher.Invoke((Action)(() =>
             {
                 ShowHideWindow(true);
-            }));
+            }));  
         }
 
         #endregion Init
@@ -757,9 +769,9 @@ namespace v2rayN.ViewModels
             {
                 Logging.SaveLog("MyAppExit Begin");
 
-                StorageUI();
+                StorageUI();                
                 ConfigHandler.SaveConfig(_config);
-
+                ServerAutoSwitchs.Stop();
                 //HttpProxyHandle.CloseHttpAgent(config);
                 if (blWindowsShutDown)
                 {
@@ -891,6 +903,16 @@ namespace v2rayN.ViewModels
                     RunningServerDisplay = ResUI.CheckServerSettings;
                     RunningServerToolTipText = ResUI.CheckServerSettings;
                 }
+
+                int autoswitchservercount = 0;
+                foreach (var item in lstModel)
+                {
+                    if(item.autoSwitch)
+                        autoswitchservercount++;
+                }
+
+                if(_setAutoSwitchAll!=null)
+                  _setAutoSwitchAll( lstModel.Count>0 && autoswitchservercount == lstModel.Count);
             }));
         }
 
@@ -1668,11 +1690,11 @@ namespace v2rayN.ViewModels
                     var profiles = LazyConfig.Instance.ProfileItemsAutoSwitch();
                     if (profiles.Count < 2)
                     {
-                        MessageBox.Show("ѡ����л�������������ڵ���2���������л�!");
+                        MessageBox.Show(ResUI.turnOnSwitchWarn);
                         _setAutoSwitchTog(false);
                         _config.autoSwitchItem.EnableAutoSwitch = false;
                         EnableAutoSwitch = false;
-                        ConfigHandler.SaveConfig(ref _config);
+                        ConfigHandler.SaveConfig(_config);
                         return;
                     }
                     ServerAutoSwitchs.Start();
@@ -1684,7 +1706,7 @@ namespace v2rayN.ViewModels
                         ServerAutoSwitchs.Stop();
                     });
                 }                 
-                ConfigHandler.SaveConfig(ref _config);
+                ConfigHandler.SaveConfig(_config);
             }
         }
 
@@ -1899,18 +1921,18 @@ namespace v2rayN.ViewModels
 
         private void AutoHideStartup()
         {
-            if (_config.uiItem.autoHideStartup)
-            {
+           
                 Observable.Range(1, 1)
                  .Delay(TimeSpan.FromSeconds(0.5))
                  .Subscribe(x =>
                  {
                      Application.Current.Dispatcher.Invoke(() =>
                      {
-                         ShowHideWindow(false);
+                         ShowHideWindow(!_config.uiItem.autoHideStartup);
+                         RefreshServers();
                      });
                  });
-            }
+            
         }
 
         #endregion UI
diff --git a/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs b/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs
index da871a2f..3ad9a3ff 100644
--- a/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs
@@ -99,6 +99,10 @@ namespace v2rayN.ViewModels
 
         #endregion CoreType
 
+        [Reactive] public int ServerSelectMode { get; set; }
+        [Reactive] public int AutoSwitchMode { get; set; }
+        [Reactive] public int FailTimeMax { get; set; }
+
         public ReactiveCommand<Unit, Unit> SaveCmd { get; }
 
         public OptionSettingViewModel(Window view)
@@ -181,6 +185,10 @@ namespace v2rayN.ViewModels
 
             #endregion Tun mode
 
+            FailTimeMax = _config.autoSwitchItem.FailTimeMax;
+            AutoSwitchMode = _config.autoSwitchItem.mode;
+            ServerSelectMode = _config.autoSwitchItem.ServerSelectMode;
+
             InitCoreType();
 
             SaveCmd = ReactiveCommand.Create(() =>
@@ -326,6 +334,10 @@ namespace v2rayN.ViewModels
             _config.tunModeItem.enableExInbound = TunEnableExInbound;
             _config.tunModeItem.enableIPv6Address = TunEnableIPv6Address;
 
+            _config.autoSwitchItem.mode = AutoSwitchMode;
+            _config.autoSwitchItem.ServerSelectMode=ServerSelectMode;
+            _config.autoSwitchItem.FailTimeMax = FailTimeMax;
+
             //coreType
             SaveCoreType();
 
diff --git a/v2rayN/v2rayN/Views/MainWindow.xaml b/v2rayN/v2rayN/Views/MainWindow.xaml
index 8a801dc2..44e80095 100644
--- a/v2rayN/v2rayN/Views/MainWindow.xaml
+++ b/v2rayN/v2rayN/Views/MainWindow.xaml
@@ -674,10 +674,16 @@
                         </DataGrid.Resources>
                         <DataGrid.Columns>
                             <base:MyDGBoolColumn
+                                x:Name="autoSwitchCheckCol"
                                 Width="Auto"
                                 Binding="{Binding autoSwitch, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                                 ExName="autoSwitch"
                                 Header="{x:Static resx:ResUI.LvAutoSwitch}">
+                                <DataGridCheckBoxColumn.HeaderTemplate>
+                                    <DataTemplate>
+                                        <CheckBox Name="autoSwitchCheckAll"  Content="{x:Static resx:ResUI.LvAutoSwitch}" Click="AutoSwitchAll_Click"/>
+                                    </DataTemplate>
+                                </DataGridCheckBoxColumn.HeaderTemplate>
                                 <DataGridCheckBoxColumn.ElementStyle>
                                     <Style TargetType="CheckBox">
                                         <Setter Property= "HorizontalAlignment" Value= "Center" />
diff --git a/v2rayN/v2rayN/Views/MainWindow.xaml.cs b/v2rayN/v2rayN/Views/MainWindow.xaml.cs
index 1c3cd035..8d0c1066 100644
--- a/v2rayN/v2rayN/Views/MainWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/MainWindow.xaml.cs
@@ -1,6 +1,7 @@
 using ReactiveUI;
 using Splat;
 using System.ComponentModel;
+using System.Globalization;
 using System.Reactive.Disposables;
 using System.Runtime.InteropServices;
 using System.Windows;
@@ -61,6 +62,12 @@ namespace v2rayN.Views
             Locator.CurrentMutable.RegisterLazySingleton(() => ViewModel, typeof(MainWindowViewModel));
 
             ViewModel.SetDelegate((bool b)=> togEnableAutoSwitch.IsChecked = b);
+            ViewModel.SetDelegate2((bool b) =>
+            {
+                var autoswitchcheckbox = FindVisualChild<CheckBox>(lstProfiles, "autoSwitchCheckAll");
+                if(autoswitchcheckbox != null)
+                    autoswitchcheckbox.IsChecked = b;
+            });
 
             for (int i = Global.MinFontSize; i <= Global.MinFontSize + 8; i++)
             {
@@ -208,8 +215,9 @@ namespace v2rayN.Views
                 this.Bind(ViewModel, vm => vm.SelectedSwatch, v => v.cmbSwatches.SelectedItem).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.CurrentFontSize, v => v.cmbCurrentFontSize.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.CurrentLanguage, v => v.cmbCurrentLanguage.Text).DisposeWith(disposables);
+              
             });
-
+            
             RestoreUI();
             AddHelpMenuItem();
 
@@ -312,9 +320,10 @@ namespace v2rayN.Views
             {
                 return;
             }
-
-            var colName = ((MyDGTextColumn)colHeader.Column).ExName;
-            ViewModel?.SortServer(colName);
+            var colHeader2 = colHeader.Column as MyDGTextColumn;
+            var colName = colHeader2==null ? "" : colHeader2.ExName;
+            if(colName != "")
+                ViewModel?.SortServer(colName);
         }
 
         private void menuSelectAll_Click(object sender, RoutedEventArgs e)
@@ -481,13 +490,27 @@ namespace v2rayN.Views
             }
 
             var lvColumnItem = _config.uiItem.mainColumnItem.OrderBy(t => t.Index).ToList();
+            if(lvColumnItem.FindIndex(t=>t.Name== "autoSwitch")==-1)
+            {
+                lvColumnItem.Insert(0,new()
+                {
+                    Name = "autoSwitch",
+                    Width = 79,
+                    Index = 0
+                });
+                for(var p=0;p<lvColumnItem.Count;p++)
+                {
+                    lvColumnItem[p].Index = p;
+                }
+            }
             for (int i = 0; i < lvColumnItem.Count; i++)
             {
                 var item = lvColumnItem[i];
                 for (int k = 0; k < lstProfiles.Columns.Count; k++)
                 {
-                    var item2 = (MyDGTextColumn)lstProfiles.Columns[k];
-                    if (item2.ExName == item.Name)
+                    var item2 = lstProfiles.Columns[k] as MyDGTextColumn;
+
+                    if(item2 != null && item2.ExName == item.Name)
                     {
                         if (item.Width < 0)
                         {
@@ -499,6 +522,23 @@ namespace v2rayN.Views
                             item2.DisplayIndex = i;
                         }
                     }
+                    else
+                    {
+                      var item3 = lstProfiles.Columns[k] as MyDGBoolColumn;
+                        if (item3 != null && item3.ExName == item.Name)
+                        {
+                            if (item.Width < 0)
+                            {
+                                item3.Visibility = Visibility.Hidden;
+                            }
+                            else
+                            {
+                                item3.Width = item.Width;
+                                item3.DisplayIndex = i;
+                            }
+                        }
+                    }
+                  
                 }
             }
 
@@ -526,13 +566,25 @@ namespace v2rayN.Views
             List<ColumnItem> lvColumnItem = new();
             for (int k = 0; k < lstProfiles.Columns.Count; k++)
             {
-                var item2 = (MyDGTextColumn)lstProfiles.Columns[k];
+                var item2 = lstProfiles.Columns[k] as MyDGTextColumn;
+                if(item2!=null)
                 lvColumnItem.Add(new()
                 {
                     Name = item2.ExName,
                     Width = item2.Visibility == Visibility.Visible ? Convert.ToInt32(item2.ActualWidth) : -1,
                     Index = item2.DisplayIndex
                 });
+                else
+                {
+                    var item3 = lstProfiles.Columns[k] as MyDGBoolColumn;
+                    if (item3 != null)
+                        lvColumnItem.Add(new()
+                        {
+                            Name = item3.ExName,
+                            Width = item3.Visibility == Visibility.Visible ? Convert.ToInt32(item3.ActualWidth) : -1,
+                            Index = item3.DisplayIndex
+                        });
+                }
             }
             _config.uiItem.mainColumnItem = lvColumnItem;
 
@@ -566,12 +618,108 @@ namespace v2rayN.Views
                 Utils.ProcessStart(item.Tag.ToString());
             }
         }
+        private void AutoSwitchAll_Click(object sender, RoutedEventArgs e)
+        {
+            CheckBox cb = sender as CheckBox;
+            foreach (var item in ViewModel.ProfileItems)
+            {
+                item.autoSwitch = cb.IsChecked ?? item.autoSwitch;
+                var item2 = LazyConfig.Instance.GetProfileItem(item.indexId);
+                if(item2.autoSwitch != item.autoSwitch)
+                {
+                    item2.autoSwitch = item.autoSwitch;
+                    SqliteHelper.Instance.Update(item2);
+                }
+            }
+
+            ViewModel.RefreshServers();
+            var profiles = LazyConfig.Instance.ProfileItemsAutoSwitch();
+            if (profiles.Count < 2 && _config.autoSwitchItem.EnableAutoSwitch)
+            {
+                togEnableAutoSwitch.IsChecked = false;
+                _config.autoSwitchItem.EnableAutoSwitch = false;
+                MessageBox.Show(ResUI.stopSwtichWarn);
+            }
+        }
+        private T FindVisualChild<T>(DependencyObject obj,string name = null)
+             where T : DependencyObject
+        {
+            for (int i = 0; i < VisualTreeHelper.GetChildrenCount(obj); i++)
+            {
+                DependencyObject child = VisualTreeHelper.GetChild(obj, i);
+                var currChildElement = child as FrameworkElement;
+                if (child != null && child is T)
+                {
+                    if(string.IsNullOrEmpty(name) == false && currChildElement.Name == name)
+                        return (T)child;
+                }
+                else
+                {
+                    T childOfChild = FindVisualChild<T>(child,name);
+                    if (childOfChild != null)
+                        return childOfChild;
+                }
+            }
+            return null;
+        }
+        public static T GetVisualChild<T>(DependencyObject parent,
+                                  string name = null) where T : DependencyObject
+        {
+            T result;
+            int count;
+            DependencyObject currChild;
+            FrameworkElement currChildElement;
+
+            count = VisualTreeHelper.GetChildrenCount(parent);
+            for (int i = 0; i < count; i++)
+            {
+                currChild = VisualTreeHelper.GetChild(parent, i);
+                currChildElement = currChild as FrameworkElement;
+
+                if (currChild is T)
+                {
+                    if (string.IsNullOrEmpty(name) == false)
+                    {
+                        // A name was given so the child must match it
+                        if ((currChildElement != null) &&
+                            (currChildElement.Name == name))
+                        {
+                            return ((T)currChild);
+                        }
+                    }
+                    else
+                    {
+                        // No name was given but the type matches
+                        return ((T)currChild);
+                    }
+                }
+
+                // Recursively search children
+                result = GetVisualChild<T>(currChild, name);
+                if (result != null)
+                {
+                    return (result);
+                }
+            }
+
+            return (null);
+        }
         private void AutoSwitch_Click(object sender, RoutedEventArgs e)
         {
             //CheckBox cb = sender as CheckBox;
            var item = LazyConfig.Instance.GetProfileItem(ViewModel.SelectedProfile.indexId);
             item.autoSwitch = ViewModel.SelectedProfile.autoSwitch;
             SqliteHelper.Instance.Update(item);
+            if(!ViewModel.SelectedProfile.autoSwitch)
+            {
+                var profiles = LazyConfig.Instance.ProfileItemsAutoSwitch();
+                if(profiles.Count< 2 && _config.autoSwitchItem.EnableAutoSwitch)
+                {
+                    togEnableAutoSwitch.IsChecked = false;
+                    _config.autoSwitchItem.EnableAutoSwitch = false;
+                    MessageBox.Show(ResUI.stopSwtichWarn);
+                }
+            }
             //if(ViewModel.EnableAutoSwitch)
             //{
             //    ViewModel.ServerAutoSwitchs.Start();
diff --git a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
index f4822b42..fee712c0 100644
--- a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
@@ -2,7 +2,9 @@
 using System.Globalization;
 using System.IO;
 using System.Reactive.Disposables;
+using System.Timers;
 using System.Windows;
+using System.Windows.Controls;
 using System.Windows.Media;
 using v2rayN.Handler;
 using v2rayN.Mode;
@@ -85,6 +87,11 @@ namespace v2rayN.Views
                 cmbSubConvertUrl.Items.Add(it);
             });
 
+            cmbServerSelectMode.Items.Add(Resx.ResUI.TbSettingsNextServer);
+            cmbServerSelectMode.Items.Add(Resx.ResUI.TbSettingsLowestTCPingServer);
+            cmbServerSelectMode.Items.Add(Resx.ResUI.TbSettingsLowestRealPingServer);
+
+            cmbAutoSwitchMainMode.Items.Add(Resx.ResUI.TbSettingsServerFail);
             //fill fonts
             try
             {
@@ -195,10 +202,38 @@ namespace v2rayN.Views
                 this.Bind(ViewModel, vm => vm.CoreType5, v => v.cmbCoreType5.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.CoreType6, v => v.cmbCoreType6.Text).DisposeWith(disposables);
 
+                this.Bind(ViewModel, vm => vm.AutoSwitchMode, v => v.cmbAutoSwitchMainMode.SelectedIndex).DisposeWith(disposables);
+                this.Bind(ViewModel, vm => vm.ServerSelectMode, v => v.cmbServerSelectMode.SelectedIndex).DisposeWith(disposables);
+                this.Bind(ViewModel, vm => vm.FailTimeMax, v => v.txtFailTimeMax.Text).DisposeWith(disposables);
+
                 this.BindCommand(ViewModel, vm => vm.SaveCmd, v => v.btnSave).DisposeWith(disposables);
             });
-        }
 
+            txtFailTimeMax.TextChanged += (s, e) =>
+            {
+                txtFailTimeMax_OnTextChanged(s, e);
+            };
+        }
+        private async void txtFailTimeMax_OnTextChanged(object sender, TextChangedEventArgs e)
+        {
+            if (sender is TextBox tb)
+            {
+                string beginContext = tb.Text;
+                await Task.Delay(2000);
+                if (beginContext == tb.Text)
+                {
+                    int value;
+                    if (int.TryParse(tb.Text, out value))
+                    {
+                        if (value > 600)
+                            tb.Text = "600";
+                        else if (value < 30)
+                            tb.Text = "30";
+                    }
+                    ViewModel.FailTimeMax=value;
+                }
+            }
+        }
         private void btnCancel_Click(object sender, RoutedEventArgs e)
         {
             this.Close();