diff --git a/CNAS_DBSync/ActivationForm.cs b/CNAS_DBSync/ActivationForm.cs
index 27aaf50..d585811 100644
--- a/CNAS_DBSync/ActivationForm.cs
+++ b/CNAS_DBSync/ActivationForm.cs
@@ -5,11 +5,14 @@ using System.Management;
 using System.Net.NetworkInformation;
 using System.Collections.Generic;
 using System.IO;
+using System.Configuration;
 
 namespace CNAS_DBSync
 {
     public partial class ActivationForm : Form
     {
+        private const string ACTIVATION_FILE = "activation.config";
+        
         public bool IsActivated { get; private set; }
 
         public ActivationForm()
@@ -18,6 +21,39 @@ namespace CNAS_DBSync
             IsActivated = false;
         }
 
+        // 检查是否已激活
+        public   bool CheckActivation()
+        {
+            try
+            {
+                string activationPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, ACTIVATION_FILE);
+                if (File.Exists(activationPath))
+                {
+                    string machineCode = GetMachineCode();
+                    string savedMachineCode = File.ReadAllText(activationPath);
+                    return machineCode == savedMachineCode;
+                }
+            }
+            catch
+            {
+                // 如果读取失败，返回未激活状态
+            }
+            return false;
+        }
+
+        private  void SaveActivation()
+        {
+            try
+            {
+                string activationPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, ACTIVATION_FILE);
+                File.WriteAllText(activationPath, GetMachineCode());
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show($"保存激活状态失败：{ex.Message}", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+            }
+        }
+
         private void btnActivate_Click(object sender, EventArgs e)
         {
             string activationCode = txtActivationCode.Text.Trim();
@@ -32,6 +68,7 @@ namespace CNAS_DBSync
                 if (ValidateActivationCode(activationCode))
                 {
                     IsActivated = true;
+                    SaveActivation(); // 保存激活状态
                     this.DialogResult = DialogResult.OK;
                     this.Close();
                 }
diff --git a/CNAS_DBSync/Program.cs b/CNAS_DBSync/Program.cs
index 28717bf..a879b82 100644
--- a/CNAS_DBSync/Program.cs
+++ b/CNAS_DBSync/Program.cs
@@ -23,17 +23,25 @@ namespace CNAS_DBSync
             /*CheckAvailability(ref strMsg);*/
             if (strMsg == "")
             {
-                // 显示激活窗口
-                using (var activationForm = new ActivationForm())
+                // 检查是否已激活
+                if (! (new ActivationForm()).CheckActivation())
                 {
-                    if (activationForm.ShowDialog() == DialogResult.OK)
+                    // 未激活，显示激活窗口
+                    using (var activationForm = new ActivationForm())
                     {
-                        // 激活成功，显示主窗口
-                        if (new frmOperationPwd().ShowDialog() == DialogResult.OK)
-                            Application.Run(new frmSyncParams());
+                        if (activationForm.ShowDialog() == DialogResult.OK)
+                        {
+                            // 激活成功，显示主窗口
+                            if (new frmOperationPwd().ShowDialog() == DialogResult.OK)
+                                Application.Run(new frmSyncParams());
+                        }
                     }
-                    //else
-                    //    MessageBox.Show("激活失败");
+                }
+                else
+                {
+                    // 已激活，直接显示主窗口
+                    if (new frmOperationPwd().ShowDialog() == DialogResult.OK)
+                        Application.Run(new frmSyncParams());
                 }
             }
             else
diff --git a/dll/CNAS_DBSync.exe b/dll/CNAS_DBSync.exe
index a49102e..8b3a4f9 100644
Binary files a/dll/CNAS_DBSync.exe and b/dll/CNAS_DBSync.exe differ
diff --git a/dll/activation.config b/dll/activation.config
new file mode 100644
index 0000000..9ee4c79
--- /dev/null
+++ b/dll/activation.config
@@ -0,0 +1 @@
+BFEBFBFF000B06A2_7413EA0CEB72_7613EA0CEB71_7413EA0CEB71_7413EA0CEB75
\ No newline at end of file