diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f2ca22..b2fa1f2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,10 @@
 
 ### 新增 (Added)
 
-- 无
+- ✨ **开发者调试工具**: 新增开发者调试工具，优化插件开发体验
+  - 提供便捷的调试功能，帮助开发者快速定位和解决问题
+  - 支持插件运行时状态监控和日志查看
+  - 提升插件开发效率和调试体验
 
 ### 变更 (Changed)
 
diff --git a/LanMountainDesktop/Services/Settings/SettingsWindowService.cs b/LanMountainDesktop/Services/Settings/SettingsWindowService.cs
index 271433e..bb12cc5 100644
--- a/LanMountainDesktop/Services/Settings/SettingsWindowService.cs
+++ b/LanMountainDesktop/Services/Settings/SettingsWindowService.cs
@@ -72,6 +72,7 @@ internal sealed class SettingsWindowService : ISettingsWindowService
         _localizationService = new();
         _settingsFacade.Settings.Changed += OnSettingsChanged;
         _appearanceThemeService.Changed += OnAppearanceThemeChanged;
+        AppSettingsService.SettingsSaved += OnAppSettingsSaved;
     }
 
     private string L(string key)
@@ -279,6 +280,7 @@ internal sealed class SettingsWindowService : ISettingsWindowService
             var changedKeys = e.ChangedKeys?.ToArray();
             var refreshAll = changedKeys is null || changedKeys.Length == 0;
             var languageChanged = refreshAll || changedKeys.Contains(nameof(AppSettingsSnapshot.LanguageCode), StringComparer.OrdinalIgnoreCase);
+            var devModeChanged = refreshAll || changedKeys.Contains(nameof(AppSettingsSnapshot.IsDevModeEnabled), StringComparer.OrdinalIgnoreCase);
             var liveAppearance = _appearanceThemeService.GetCurrent();
             var themeChanged =
                 refreshAll ||
@@ -291,14 +293,13 @@ internal sealed class SettingsWindowService : ISettingsWindowService
                   changedKeys.Contains(nameof(AppSettingsSnapshot.WallpaperColor), StringComparer.OrdinalIgnoreCase))) ||
                 changedKeys.Contains(nameof(AppSettingsSnapshot.UseSystemChrome), StringComparer.OrdinalIgnoreCase);
 
-            if (languageChanged)
+            if (languageChanged || devModeChanged)
             {
                 var regionState = _settingsFacade.Region.Get();
-                // 清除本地化缓存，强制重新加载语言文件
                 _localizationService.ClearCache();
                 _viewModel.RefreshLanguage(regionState.LanguageCode);
                 _pageRegistry.Rebuild();
-                _window.ReloadPages(_viewModel.CurrentPageId);
+                _window.ReloadPages(devModeChanged ? "dev" : _viewModel.CurrentPageId);
                 _window.RefreshShellText();
             }
 
@@ -311,6 +312,31 @@ internal sealed class SettingsWindowService : ISettingsWindowService
         }, DispatcherPriority.Background);
     }
 
+    private void OnAppSettingsSaved(string instanceId)
+    {
+        Dispatcher.UIThread.Post(() =>
+        {
+            if (_window is null || _viewModel is null)
+            {
+                return;
+            }
+
+            var snapshot = _settingsFacade.Settings.LoadSnapshot<AppSettingsSnapshot>(SettingsScope.App);
+            var devPageVisible = _pageRegistry.GetPages().Any(p => p.PageId == "dev");
+
+            if (snapshot.IsDevModeEnabled && !devPageVisible)
+            {
+                _pageRegistry.Rebuild();
+                _window.ReloadPages("dev");
+            }
+            else if (!snapshot.IsDevModeEnabled && devPageVisible)
+            {
+                _pageRegistry.Rebuild();
+                _window.ReloadPages(null);
+            }
+        }, DispatcherPriority.Background);
+    }
+
     private void ApplyTheme(SettingsWindow window)
     {
         var appearanceSnapshot = _appearanceThemeService.GetCurrent();
diff --git a/LanMountainDesktop/Views/SettingsPages/AboutSettingsPage.axaml.cs b/LanMountainDesktop/Views/SettingsPages/AboutSettingsPage.axaml.cs
index 2b005b6..141317b 100644
--- a/LanMountainDesktop/Views/SettingsPages/AboutSettingsPage.axaml.cs
+++ b/LanMountainDesktop/Views/SettingsPages/AboutSettingsPage.axaml.cs
@@ -3,13 +3,14 @@ using System.Diagnostics;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Input;
-using Avalonia.Interactivity;
+using Avalonia.VisualTree;
 using FluentAvalonia.UI.Controls;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.PluginSdk;
 using LanMountainDesktop.Services;
 using LanMountainDesktop.Services.Settings;
 using LanMountainDesktop.ViewModels;
+using LanMountainDesktop.Views;
 
 namespace LanMountainDesktop.Views.SettingsPages;
 
@@ -95,7 +96,7 @@ public partial class AboutSettingsPage : SettingsPageBase
             if (_heroCardClickCount >= 3)
             {
                 _heroCardClickCount = 0;
-                _ = ShowMessageAsync("开发者模式", "开发者模式已启用，无需重复操作。");
+                Debug.WriteLine("[AboutSettingsPage] Developer mode is already enabled.");
             }
 
             return;
@@ -142,22 +143,9 @@ public partial class AboutSettingsPage : SettingsPageBase
 
         AppLogger.Info("DevMode", "Developer mode enabled via About page activation.");
 
-        _ = ShowMessageAsync("开发者模式", "已启用开发者模式。重新打开设置窗口即可看到开发者选项。");
-
-        if (HostContext is not null)
+        if (this.FindAncestorOfType<SettingsWindow>() is { } settingsWindow)
         {
-            HostContext.RequestRestart("开发者模式已更改");
+            settingsWindow.RebuildAndNavigateToDevPage();
         }
     }
-
-    private static async Task ShowMessageAsync(string title, string message)
-    {
-        var dialog = new ContentDialog
-        {
-            Title = title,
-            Content = message,
-            CloseButtonText = "确定"
-        };
-        await dialog.ShowAsync();
-    }
 }
diff --git a/LanMountainDesktop/Views/SettingsWindow.axaml.cs b/LanMountainDesktop/Views/SettingsWindow.axaml.cs
index 4b426aa..50e8fb1 100644
--- a/LanMountainDesktop/Views/SettingsWindow.axaml.cs
+++ b/LanMountainDesktop/Views/SettingsWindow.axaml.cs
@@ -97,6 +97,12 @@ public partial class SettingsWindow : Window, ISettingsPageHostContext
         NavigateTo(pageId ?? ViewModel.Pages.FirstOrDefault()?.PageId);
     }
 
+    public void RebuildAndNavigateToDevPage()
+    {
+        _pageRegistry.Rebuild();
+        ReloadPages("dev");
+    }
+
     public void OpenDrawer(Control content, string? title = null)
     {
         if (DrawerContentHost is null)