diff --git a/DMS.WPF/App.xaml.cs b/DMS.WPF/App.xaml.cs
index 35f3f90..a1a6100 100644
--- a/DMS.WPF/App.xaml.cs
+++ b/DMS.WPF/App.xaml.cs
@@ -55,7 +55,7 @@ public partial class App : System.Windows.Application
     protected override async void OnStartup(StartupEventArgs e)
     {
         base.OnStartup(e);
-        ShutdownMode = ShutdownMode.OnExplicitShutdown;
+        ShutdownMode = ShutdownMode.OnLastWindowClose;
         ThemeHelper.InitializeTheme();
         await Host.StartAsync();
 
@@ -80,8 +80,8 @@ public partial class App : System.Windows.Application
             NotificationHelper.ShowError("加载数据时发生错误，如果是连接字符串不正确，可以在设置界面更改：{exception.Message}", exception);
         }
         
-        MainWindow = Host.Services.GetRequiredService<SplashWindow>();
-        MainWindow.Show();
+        var splashWindow = Host.Services.GetRequiredService<SplashWindow>();
+        splashWindow.Show();
 
         // 根据配置启动服务
         // var connectionSettings = DMS.Config.AppSettings.Load();
diff --git a/DMS.WPF/Services/NavigationService.cs b/DMS.WPF/Services/NavigationService.cs
index 3b787e9..cca5932 100644
--- a/DMS.WPF/Services/NavigationService.cs
+++ b/DMS.WPF/Services/NavigationService.cs
@@ -1,10 +1,13 @@
 // 文件: DMS.WPF/Services/NavigationService.cs
+
 using DMS.WPF.ViewModels;
 using Microsoft.Extensions.DependencyInjection;
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
+using System.Windows;
 using DMS.ViewModels;
+using DMS.WPF.Views;
 
 namespace DMS.WPF.Services;
 
@@ -50,23 +53,28 @@ public class NavigationService : INavigationService
     /// </summary>
     public Task ShowMainWindowAsync()
     {
-        var mainWindow = _serviceProvider.GetRequiredService<MainWindow>();
-        mainWindow.Show();
-        return Task.CompletedTask;
+        return App.Current.Dispatcher.InvokeAsync(() =>
+                  {
+                      var mainView = _serviceProvider.GetRequiredService<MainView>();
+                      // 将 MainView 设置为新的主窗口
+                      App.Current.MainWindow = mainView;
+                      mainView.Show();
+                  })
+                  .Task;
     }
 
     private Type GetViewModelTypeByKey(string key)
     {
         return key switch
-        {
-            "HomeView" => typeof(HomeViewModel),
-            "DevicesView" => typeof(DevicesViewModel),
-            "DeviceDetailView" => typeof(DeviceDetailViewModel),
-            "VariableTableView" => typeof(VariableTableViewModel),
-            "MqttsView" => typeof(MqttsViewModel),
-            "MqttServerDetailView" => typeof(MqttServerDetailViewModel),
-            "SettingView" => typeof(SettingViewModel),
-            _ => throw new KeyNotFoundException($"未找到与键 '{key}' 关联的视图模型类型。请检查 NavigationService 的映射配置。")
-        };
+               {
+                   "HomeView" => typeof(HomeViewModel),
+                   "DevicesView" => typeof(DevicesViewModel),
+                   "DeviceDetailView" => typeof(DeviceDetailViewModel),
+                   "VariableTableView" => typeof(VariableTableViewModel),
+                   "MqttsView" => typeof(MqttsViewModel),
+                   "MqttServerDetailView" => typeof(MqttServerDetailViewModel),
+                   "SettingView" => typeof(SettingViewModel),
+                   _ => throw new KeyNotFoundException($"未找到与键 '{key}' 关联的视图模型类型。请检查 NavigationService 的映射配置。")
+               };
     }
-}
+}
\ No newline at end of file
diff --git a/DMS.WPF/ViewModels/SplashViewModel.cs b/DMS.WPF/ViewModels/SplashViewModel.cs
index ca13178..4e74e13 100644
--- a/DMS.WPF/ViewModels/SplashViewModel.cs
+++ b/DMS.WPF/ViewModels/SplashViewModel.cs
@@ -29,7 +29,7 @@ public partial class SplashViewModel : ObservableObject
     /// <summary>
     /// 开始执行初始化任务。
     /// </summary>
-    public async Task InitializeAsync()
+    public async Task<bool> InitializeAsync()
     {
         try
         {
@@ -50,12 +50,14 @@ public partial class SplashViewModel : ObservableObject
             // 初始化完成，显示主窗口
             var navigationService = (INavigationService)_serviceProvider.GetService(typeof(INavigationService));
             await navigationService.ShowMainWindowAsync();
+            return true;
         }
         catch (Exception ex)
         {
             // 处理初始化过程中的异常
             LoadingMessage = $"初始化失败: {ex.Message}";
             // 在此可以记录日志或显示错误对话框
+            return false;
         }
     }
 }
diff --git a/DMS.WPF/Views/SplashWindow.xaml.cs b/DMS.WPF/Views/SplashWindow.xaml.cs
index bdb7e91..14377cc 100644
--- a/DMS.WPF/Views/SplashWindow.xaml.cs
+++ b/DMS.WPF/Views/SplashWindow.xaml.cs
@@ -15,8 +15,11 @@ public partial class SplashWindow : Window
         DataContext = viewModel;
         Loaded += async (s, e) =>
         {
-            await viewModel.InitializeAsync();
-            Close();
+            var success = await viewModel.InitializeAsync();
+            if (success)
+            {
+                Close();
+            }
         };
     }
 }