diff --git a/PJZS/App.xaml b/PJZS/App.xaml
index 8ca648fd..ab7302d8 100644
--- a/PJZS/App.xaml
+++ b/PJZS/App.xaml
@@ -4,7 +4,7 @@
              xmlns:local="clr-namespace:PJZS"
              xmlns:vm="clr-namespace:PJZS.ViewModels"
              StartupUri="MainWindow.xaml"
-             ShutdownMode="OnExplicitShutdown">
+             ShutdownMode="OnMainWindowClose">
     <Application.Resources>
         <!--<ResourceDictionary>
             <vm:ViewModelLocator x:Key="Locator"></vm:ViewModelLocator>
diff --git a/PJZS/App.xaml.cs b/PJZS/App.xaml.cs
index 56623900..8a699cda 100644
--- a/PJZS/App.xaml.cs
+++ b/PJZS/App.xaml.cs
@@ -11,6 +11,7 @@ using System.Windows;
 using PJZS.Models;
 using System.Linq;
 using System.IO.MemoryMappedFiles;
+using System.Diagnostics;
 
 namespace PJZS
 {
@@ -24,6 +25,13 @@ namespace PJZS
 
         protected override void OnStartup(StartupEventArgs e)
         {
+
+            var pjzsExeList = Process.GetProcessesByName("PJZS");
+            if (pjzsExeList != null && pjzsExeList.Count() > 1)
+            {
+                Environment.Exit(Environment.ExitCode);
+            }
+
             var gl = new GlobalContext();
             string userToken = string.Empty;
 #if DEBUG
diff --git a/PJZS/MainWindow.xaml.cs b/PJZS/MainWindow.xaml.cs
index cbb56a56..1fc5ad02 100644
--- a/PJZS/MainWindow.xaml.cs
+++ b/PJZS/MainWindow.xaml.cs
@@ -34,6 +34,12 @@ namespace PJZS
             InitializeComponent();
             this.managerDepartment = new List<string>() { "董事办", "财务部", "技术部", "总经办" };
             this.Loaded += MainWindow_Loaded;
+            this.Closed += MainWindow_Closed;
+        }
+
+        private void MainWindow_Closed(object sender, EventArgs e)
+        {
+            Environment.Exit(Environment.ExitCode);
         }
 
         private bool CheckWebview2Runtime()