diff --git a/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingLinux.cs b/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingLinux.cs
index 9cac0018..4929c72e 100644
--- a/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingLinux.cs
+++ b/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingLinux.cs
@@ -18,7 +18,13 @@ public static class ProxySettingLinux
 
     private static async Task ExecCmd(List<string> args)
     {
-        var fileName = await FileUtils.CreateLinuxShellFile(_proxySetFileName, EmbedUtils.GetEmbedText(Global.ProxySetLinuxShellFileName), false);
+        var customSystemProxyScriptPath = AppManager.Instance.Config.SystemProxyItem?.CustomSystemProxyScriptPath;
+        var fileName = (customSystemProxyScriptPath.IsNotEmpty() && File.Exists(customSystemProxyScriptPath))
+            ? customSystemProxyScriptPath
+            : await FileUtils.CreateLinuxShellFile(_proxySetFileName, EmbedUtils.GetEmbedText(Global.ProxySetLinuxShellFileName), false);
+
+        // TODO: temporarily notify which script is being used
+        NoticeManager.Instance.SendMessage(fileName);
 
         await Utils.GetCliWrapOutput(fileName, args);
     }
diff --git a/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingOSX.cs b/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingOSX.cs
index 88baa5a6..56fbe24d 100644
--- a/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingOSX.cs
+++ b/v2rayN/ServiceLib/Handler/SysProxy/ProxySettingOSX.cs
@@ -23,7 +23,13 @@ public static class ProxySettingOSX
 
     private static async Task ExecCmd(List<string> args)
     {
-        var fileName = await FileUtils.CreateLinuxShellFile(_proxySetFileName, EmbedUtils.GetEmbedText(Global.ProxySetOSXShellFileName), false);
+        var customSystemProxyScriptPath = AppManager.Instance.Config.SystemProxyItem?.CustomSystemProxyScriptPath;
+        var fileName = (customSystemProxyScriptPath.IsNotEmpty() && File.Exists(customSystemProxyScriptPath))
+            ? customSystemProxyScriptPath
+            : await FileUtils.CreateLinuxShellFile(_proxySetFileName, EmbedUtils.GetEmbedText(Global.ProxySetOSXShellFileName), false);
+
+        // TODO: temporarily notify which script is being used
+        NoticeManager.Instance.SendMessage(fileName);
 
         await Utils.GetCliWrapOutput(fileName, args);
     }
diff --git a/v2rayN/ServiceLib/Handler/SysProxy/SysProxyHandler.cs b/v2rayN/ServiceLib/Handler/SysProxy/SysProxyHandler.cs
index 38ea04ae..426945e0 100644
--- a/v2rayN/ServiceLib/Handler/SysProxy/SysProxyHandler.cs
+++ b/v2rayN/ServiceLib/Handler/SysProxy/SysProxyHandler.cs
@@ -91,7 +91,7 @@ public static class SysProxyHandler
     private static async Task SetWindowsProxyPac(int port)
     {
         var portPac = AppManager.Instance.GetLocalPort(EInboundProtocol.pac);
-        await PacManager.Instance.StartAsync(Utils.GetConfigPath(), port, portPac);
+        await PacManager.Instance.StartAsync(port, portPac);
         var strProxy = $"{Global.HttpProtocol}{Global.Loopback}:{portPac}/pac?t={DateTime.Now.Ticks}";
         ProxySettingWindows.SetProxy(strProxy, "", 4);
     }
diff --git a/v2rayN/ServiceLib/Manager/PacManager.cs b/v2rayN/ServiceLib/Manager/PacManager.cs
index cba89830..92c0b5ba 100644
--- a/v2rayN/ServiceLib/Manager/PacManager.cs
+++ b/v2rayN/ServiceLib/Manager/PacManager.cs
@@ -5,7 +5,6 @@ public class PacManager
     private static readonly Lazy<PacManager> _instance = new(() => new PacManager());
     public static PacManager Instance => _instance.Value;
 
-    private string _configPath;
     private int _httpPort;
     private int _pacPort;
     private TcpListener? _tcpListener;
@@ -13,11 +12,10 @@ public class PacManager
     private bool _isRunning;
     private bool _needRestart = true;
 
-    public async Task StartAsync(string configPath, int httpPort, int pacPort)
+    public async Task StartAsync(int httpPort, int pacPort)
     {
-        _needRestart = configPath != _configPath || httpPort != _httpPort || pacPort != _pacPort || !_isRunning;
+        _needRestart = httpPort != _httpPort || pacPort != _pacPort || !_isRunning;
 
-        _configPath = configPath;
         _httpPort = httpPort;
         _pacPort = pacPort;
 
@@ -32,22 +30,22 @@ public class PacManager
 
     private async Task InitText()
     {
-        var path = Path.Combine(_configPath, "pac.txt");
+        var customSystemProxyPacPath = AppManager.Instance.Config.SystemProxyItem?.CustomSystemProxyPacPath;
+        var fileName = (customSystemProxyPacPath.IsNotEmpty() && File.Exists(customSystemProxyPacPath))
+            ? customSystemProxyPacPath
+            : Path.Combine(Utils.GetConfigPath(), "pac.txt");
 
-        // Delete the old pac file
-        if (File.Exists(path) && Utils.GetFileHash(path).Equals("b590c07280f058ef05d5394aa2f927fe"))
-        {
-            File.Delete(path);
-        }
+        // TODO: temporarily notify which script is being used
+        NoticeManager.Instance.SendMessage(fileName);
 
-        if (!File.Exists(path))
+        if (!File.Exists(fileName))
         {
             var pac = EmbedUtils.GetEmbedText(Global.PacFileName);
-            await File.AppendAllTextAsync(path, pac);
+            await File.AppendAllTextAsync(fileName, pac);
         }
 
-        var pacText =
-            (await File.ReadAllTextAsync(path)).Replace("__PROXY__", $"PROXY 127.0.0.1:{_httpPort};DIRECT;");
+        var pacText = await File.ReadAllTextAsync(fileName);
+        pacText = pacText.Replace("__PROXY__", $"PROXY 127.0.0.1:{_httpPort};DIRECT;");
 
         var sb = new StringBuilder();
         sb.AppendLine("HTTP/1.0 200 OK");
diff --git a/v2rayN/ServiceLib/Models/ConfigItems.cs b/v2rayN/ServiceLib/Models/ConfigItems.cs
index 531a99f4..22b917a6 100644
--- a/v2rayN/ServiceLib/Models/ConfigItems.cs
+++ b/v2rayN/ServiceLib/Models/ConfigItems.cs
@@ -219,6 +219,8 @@ public class SystemProxyItem
     public string SystemProxyExceptions { get; set; }
     public bool NotProxyLocalAddress { get; set; } = true;
     public string SystemProxyAdvancedProtocol { get; set; }
+    public string? CustomSystemProxyPacPath { get; set; }
+    public string? CustomSystemProxyScriptPath { get; set; }
 }
 
 [Serializable]
diff --git a/v2rayN/ServiceLib/Resx/ResUI.Designer.cs b/v2rayN/ServiceLib/Resx/ResUI.Designer.cs
index b0721398..dca8f3cd 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.Designer.cs
+++ b/v2rayN/ServiceLib/Resx/ResUI.Designer.cs
@@ -3508,6 +3508,24 @@ namespace ServiceLib.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 Custom PAC file path 的本地化字符串。
+        /// </summary>
+        public static string TbSettingsCustomSystemProxyPacPath {
+            get {
+                return ResourceManager.GetString("TbSettingsCustomSystemProxyPacPath", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   查找类似 Custom system proxy script file path 的本地化字符串。
+        /// </summary>
+        public static string TbSettingsCustomSystemProxyScriptPath {
+            get {
+                return ResourceManager.GetString("TbSettingsCustomSystemProxyScriptPath", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 Allow Insecure 的本地化字符串。
         /// </summary>
diff --git a/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx b/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx
index 17ace05c..299f6f9f 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx
@@ -1624,4 +1624,10 @@ Do not use the "Fetch Certificate" button when "Allow Insecure" is enabled.</val
   <data name="CertSet" xml:space="preserve">
     <value>Certificate set</value>
   </data>
+  <data name="TbSettingsCustomSystemProxyPacPath" xml:space="preserve">
+    <value>Custom PAC file path</value>
+  </data>
+  <data name="TbSettingsCustomSystemProxyScriptPath" xml:space="preserve">
+    <value>Custom system proxy script file path</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.fr.resx b/v2rayN/ServiceLib/Resx/ResUI.fr.resx
index 877f3420..74335afe 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.fr.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.fr.resx
@@ -1621,4 +1621,10 @@ Ne pas utiliser « Obtenir le certificat » si « Autoriser non sécurisé » es
   <data name="CertSet" xml:space="preserve">
     <value>Certificat configuré </value>
   </data>
-</root>
+  <data name="TbSettingsCustomSystemProxyPacPath" xml:space="preserve">
+    <value>Custom PAC file path</value>
+  </data>
+  <data name="TbSettingsCustomSystemProxyScriptPath" xml:space="preserve">
+    <value>Custom system proxy script file path</value>
+  </data>
+</root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.hu.resx b/v2rayN/ServiceLib/Resx/ResUI.hu.resx
index e0052822..dd6a6a63 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.hu.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.hu.resx
@@ -1624,4 +1624,10 @@ Do not use the "Fetch Certificate" button when "Allow Insecure" is enabled.</val
   <data name="CertSet" xml:space="preserve">
     <value>Certificate set</value>
   </data>
+  <data name="TbSettingsCustomSystemProxyPacPath" xml:space="preserve">
+    <value>Custom PAC file path</value>
+  </data>
+  <data name="TbSettingsCustomSystemProxyScriptPath" xml:space="preserve">
+    <value>Custom system proxy script file path</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.resx b/v2rayN/ServiceLib/Resx/ResUI.resx
index b3e31748..a59d068e 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.resx
@@ -1624,4 +1624,10 @@ Do not use the "Fetch Certificate" button when "Allow Insecure" is enabled.</val
   <data name="CertSet" xml:space="preserve">
     <value>Certificate set</value>
   </data>
+  <data name="TbSettingsCustomSystemProxyPacPath" xml:space="preserve">
+    <value>Custom PAC file path</value>
+  </data>
+  <data name="TbSettingsCustomSystemProxyScriptPath" xml:space="preserve">
+    <value>Custom system proxy script file path</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.ru.resx b/v2rayN/ServiceLib/Resx/ResUI.ru.resx
index bdd464ef..59176fa3 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.ru.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.ru.resx
@@ -1624,4 +1624,10 @@ Do not use the "Fetch Certificate" button when "Allow Insecure" is enabled.</val
   <data name="CertSet" xml:space="preserve">
     <value>Certificate set</value>
   </data>
+  <data name="TbSettingsCustomSystemProxyPacPath" xml:space="preserve">
+    <value>Custom PAC file path</value>
+  </data>
+  <data name="TbSettingsCustomSystemProxyScriptPath" xml:space="preserve">
+    <value>Custom system proxy script file path</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx b/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx
index 0f8ffb10..a58f3c57 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx
@@ -1621,4 +1621,10 @@
   <data name="CertSet" xml:space="preserve">
     <value>证书已设置</value>
   </data>
+  <data name="TbSettingsCustomSystemProxyPacPath" xml:space="preserve">
+    <value>自定义 PAC 文件路径</value>
+  </data>
+  <data name="TbSettingsCustomSystemProxyScriptPath" xml:space="preserve">
+    <value>自定义系统代理脚本文件路径</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx b/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx
index 5fb6e2f2..e76a044f 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx
@@ -1621,4 +1621,10 @@ Do not use the "Fetch Certificate" button when "Allow Insecure" is enabled.</val
   <data name="CertSet" xml:space="preserve">
     <value>Certificate set</value>
   </data>
+  <data name="TbSettingsCustomSystemProxyPacPath" xml:space="preserve">
+    <value>自訂 PAC 檔案路徑</value>
+  </data>
+  <data name="TbSettingsCustomSystemProxyScriptPath" xml:space="preserve">
+    <value>自訂系統代理程式腳本檔案路徑</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/v2rayN/ServiceLib/ViewModels/OptionSettingViewModel.cs b/v2rayN/ServiceLib/ViewModels/OptionSettingViewModel.cs
index 5d4764b8..81f63d00 100644
--- a/v2rayN/ServiceLib/ViewModels/OptionSettingViewModel.cs
+++ b/v2rayN/ServiceLib/ViewModels/OptionSettingViewModel.cs
@@ -74,6 +74,8 @@ public class OptionSettingViewModel : MyReactiveObject
     [Reactive] public bool notProxyLocalAddress { get; set; }
     [Reactive] public string systemProxyAdvancedProtocol { get; set; }
     [Reactive] public string systemProxyExceptions { get; set; }
+    [Reactive] public string CustomSystemProxyPacPath { get; set; }
+    [Reactive] public string CustomSystemProxyScriptPath { get; set; }
 
     #endregion System proxy
 
@@ -191,6 +193,8 @@ public class OptionSettingViewModel : MyReactiveObject
         notProxyLocalAddress = _config.SystemProxyItem.NotProxyLocalAddress;
         systemProxyAdvancedProtocol = _config.SystemProxyItem.SystemProxyAdvancedProtocol;
         systemProxyExceptions = _config.SystemProxyItem.SystemProxyExceptions;
+        CustomSystemProxyPacPath = _config.SystemProxyItem.CustomSystemProxyPacPath;
+        CustomSystemProxyScriptPath = _config.SystemProxyItem.CustomSystemProxyScriptPath;
 
         #endregion System proxy
 
@@ -347,6 +351,8 @@ public class OptionSettingViewModel : MyReactiveObject
         _config.SystemProxyItem.SystemProxyExceptions = systemProxyExceptions;
         _config.SystemProxyItem.NotProxyLocalAddress = notProxyLocalAddress;
         _config.SystemProxyItem.SystemProxyAdvancedProtocol = systemProxyAdvancedProtocol;
+        _config.SystemProxyItem.CustomSystemProxyPacPath = CustomSystemProxyPacPath;
+        _config.SystemProxyItem.CustomSystemProxyScriptPath = CustomSystemProxyScriptPath;
 
         //tun mode
         _config.TunModeItem.AutoRoute = TunAutoRoute;
diff --git a/v2rayN/v2rayN.Desktop/Views/OptionSettingWindow.axaml b/v2rayN/v2rayN.Desktop/Views/OptionSettingWindow.axaml
index 40faf34a..321dba74 100644
--- a/v2rayN/v2rayN.Desktop/Views/OptionSettingWindow.axaml
+++ b/v2rayN/v2rayN.Desktop/Views/OptionSettingWindow.axaml
@@ -674,6 +674,29 @@
 
             <TabItem Name="tabSystemproxy" Header="{x:Static resx:ResUI.TbSettingsSystemproxy}">
                 <DockPanel Margin="{StaticResource Margin8}">
+                    <StackPanel
+                        Name="panSystemProxyUnix"
+                        DockPanel.Dock="Bottom"
+                        Orientation="Vertical">
+                        <StackPanel Orientation="Horizontal">
+                            <TextBlock
+                                Margin="{StaticResource Margin4}"
+                                VerticalAlignment="Center"
+                                Text="{x:Static resx:ResUI.TbSettingsCustomSystemProxyScriptPath}" />
+                            <TextBox
+                                x:Name="txtCustomSystemProxyScriptPath"
+                                Width="600"
+                                Margin="{StaticResource Margin4}"
+                                HorizontalAlignment="Left"
+                                VerticalAlignment="Center"
+                                TextWrapping="Wrap"
+                                Watermark="proxy_set.sh"/>
+                            <Button
+                                x:Name="btnBrowseCustomSystemProxyScriptPath"
+                                Margin="{StaticResource Margin4}"
+                                Content="{x:Static resx:ResUI.TbBrowse}" />
+                        </StackPanel>
+                    </StackPanel>
                     <StackPanel
                         Name="panSystemProxyAdvanced"
                         DockPanel.Dock="Bottom"
@@ -699,6 +722,25 @@
                                 MinWidth="400"
                                 Margin="{StaticResource Margin4}" />
                         </StackPanel>
+
+                        <StackPanel Orientation="Horizontal">
+                            <TextBlock
+                                Margin="{StaticResource Margin4}"
+                                VerticalAlignment="Center"
+                                Text="{x:Static resx:ResUI.TbSettingsCustomSystemProxyPacPath}" />
+                            <TextBox
+                                x:Name="txtCustomSystemProxyPacPath"
+                                Width="600"
+                                Margin="{StaticResource Margin4}"
+                                HorizontalAlignment="Left"
+                                VerticalAlignment="Center"
+                                TextWrapping="Wrap"
+                                Watermark="pac.txt"/>
+                            <Button
+                                x:Name="btnBrowseCustomSystemProxyPacPath"
+                                Margin="{StaticResource Margin4}"
+                                Content="{x:Static resx:ResUI.TbBrowse}" />
+                        </StackPanel>
                     </StackPanel>
 
                     <TextBlock
diff --git a/v2rayN/v2rayN.Desktop/Views/OptionSettingWindow.axaml.cs b/v2rayN/v2rayN.Desktop/Views/OptionSettingWindow.axaml.cs
index dd918007..7bef84be 100644
--- a/v2rayN/v2rayN.Desktop/Views/OptionSettingWindow.axaml.cs
+++ b/v2rayN/v2rayN.Desktop/Views/OptionSettingWindow.axaml.cs
@@ -1,4 +1,5 @@
 using v2rayN.Desktop.Base;
+using v2rayN.Desktop.Common;
 
 namespace v2rayN.Desktop.Views;
 
@@ -17,6 +18,9 @@ public partial class OptionSettingWindow : WindowBase<OptionSettingViewModel>
         ViewModel = new OptionSettingViewModel(UpdateViewHandler);
 
         clbdestOverride.SelectionChanged += ClbdestOverride_SelectionChanged;
+        btnBrowseCustomSystemProxyPacPath.Click += BtnBrowseCustomSystemProxyPacPath_Click;
+        btnBrowseCustomSystemProxyScriptPath.Click += BtnBrowseCustomSystemProxyScriptPath_Click;
+
         clbdestOverride.ItemsSource = Global.destOverrideProtocols;
         _config.Inbound.First().DestOverride?.ForEach(it =>
         {
@@ -101,6 +105,8 @@ public partial class OptionSettingWindow : WindowBase<OptionSettingViewModel>
             this.Bind(ViewModel, vm => vm.notProxyLocalAddress, v => v.tognotProxyLocalAddress.IsChecked).DisposeWith(disposables);
             this.Bind(ViewModel, vm => vm.systemProxyAdvancedProtocol, v => v.cmbsystemProxyAdvancedProtocol.SelectedValue).DisposeWith(disposables);
             this.Bind(ViewModel, vm => vm.systemProxyExceptions, v => v.txtsystemProxyExceptions.Text).DisposeWith(disposables);
+            this.Bind(ViewModel, vm => vm.CustomSystemProxyPacPath, v => v.txtCustomSystemProxyPacPath.Text).DisposeWith(disposables);
+            this.Bind(ViewModel, vm => vm.CustomSystemProxyScriptPath, v => v.txtCustomSystemProxyScriptPath.Text).DisposeWith(disposables);
 
             this.Bind(ViewModel, vm => vm.TunAutoRoute, v => v.togAutoRoute.IsChecked).DisposeWith(disposables);
             this.Bind(ViewModel, vm => vm.TunStrictRoute, v => v.togStrictRoute.IsChecked).DisposeWith(disposables);
@@ -127,6 +133,7 @@ public partial class OptionSettingWindow : WindowBase<OptionSettingViewModel>
             labHide2TrayWhenClose.IsVisible = false;
             togHide2TrayWhenClose.IsVisible = false;
             labHide2TrayWhenCloseTip.IsVisible = false;
+            panSystemProxyUnix.IsVisible = false;
         }
         else if (Utils.IsLinux())
         {
@@ -212,6 +219,28 @@ public partial class OptionSettingWindow : WindowBase<OptionSettingViewModel>
         }
     }
 
+    private async void BtnBrowseCustomSystemProxyPacPath_Click(object? sender, RoutedEventArgs e)
+    {
+        var fileName = await UI.OpenFileDialog(this, null);
+        if (fileName.IsNullOrEmpty())
+        {
+            return;
+        }
+
+        txtCustomSystemProxyPacPath.Text = fileName;
+    }
+
+    private async void BtnBrowseCustomSystemProxyScriptPath_Click(object? sender, RoutedEventArgs e)
+    {
+        var fileName = await UI.OpenFileDialog(this, null);
+        if (fileName.IsNullOrEmpty())
+        {
+            return;
+        }
+
+        txtCustomSystemProxyScriptPath.Text = fileName;
+    }
+
     private void Window_Loaded(object? sender, RoutedEventArgs e)
     {
         btnCancel.Focus();
diff --git a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml
index 129f1d09..552c0591 100644
--- a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml
+++ b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml
@@ -976,6 +976,28 @@
                                 materialDesign:HintAssist.Hint="Protocol"
                                 Style="{StaticResource DefComboBox}" />
                         </StackPanel>
+
+                        <StackPanel Orientation="Horizontal">
+                            <TextBlock
+                                Margin="{StaticResource Margin8}"
+                                VerticalAlignment="Center"
+                                Style="{StaticResource ToolbarTextBlock}"
+                                Text="{x:Static resx:ResUI.TbSettingsCustomSystemProxyPacPath}" />
+
+                            <TextBox
+                                x:Name="txtCustomSystemProxyPacPath"
+                                Width="600"
+                                Margin="{StaticResource Margin4}"
+                                VerticalAlignment="Center"
+                                AcceptsReturn="True"
+                                Style="{StaticResource DefTextBox}"
+                                TextWrapping="Wrap" />
+                            <Button
+                                x:Name="btnBrowseCustomSystemProxyPacPath"
+                                Margin="{StaticResource MarginLeftRight4}"
+                                Content="{x:Static resx:ResUI.TbBrowse}"
+                                Style="{StaticResource DefButton}" />
+                        </StackPanel>
                     </StackPanel>
 
                     <TextBlock
diff --git a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
index 409db086..cd1fc497 100644
--- a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
@@ -16,6 +16,8 @@ public partial class OptionSettingWindow
         ViewModel = new OptionSettingViewModel(UpdateViewHandler);
 
         clbdestOverride.SelectionChanged += ClbdestOverride_SelectionChanged;
+        btnBrowseCustomSystemProxyPacPath.Click += BtnBrowseCustomSystemProxyPacPath_Click;
+
         clbdestOverride.ItemsSource = Global.destOverrideProtocols;
         _config.Inbound.First().DestOverride?.ForEach(it =>
         {
@@ -110,6 +112,7 @@ public partial class OptionSettingWindow
             this.Bind(ViewModel, vm => vm.notProxyLocalAddress, v => v.tognotProxyLocalAddress.IsChecked).DisposeWith(disposables);
             this.Bind(ViewModel, vm => vm.systemProxyAdvancedProtocol, v => v.cmbsystemProxyAdvancedProtocol.Text).DisposeWith(disposables);
             this.Bind(ViewModel, vm => vm.systemProxyExceptions, v => v.txtsystemProxyExceptions.Text).DisposeWith(disposables);
+            this.Bind(ViewModel, vm => vm.CustomSystemProxyPacPath, v => v.txtCustomSystemProxyPacPath.Text).DisposeWith(disposables);
 
             this.Bind(ViewModel, vm => vm.TunAutoRoute, v => v.togAutoRoute.IsChecked).DisposeWith(disposables);
             this.Bind(ViewModel, vm => vm.TunStrictRoute, v => v.togStrictRoute.IsChecked).DisposeWith(disposables);
@@ -210,4 +213,15 @@ public partial class OptionSettingWindow
             ViewModel.destOverride = clbdestOverride.SelectedItems.Cast<string>().ToList();
         }
     }
+
+    private void BtnBrowseCustomSystemProxyPacPath_Click(object sender, RoutedEventArgs e)
+    {
+        if (UI.OpenFileDialog(out var fileName,
+              "Txt|*.txt|All|*.*") != true)
+        {
+            return;
+        }
+
+        txtCustomSystemProxyPacPath.Text = fileName;
+    }
 }