diff --git a/IsaacSocket/Program.cs b/IsaacSocket/Program.cs
index 6c02cd1..4c11c8a 100644
--- a/IsaacSocket/Program.cs
+++ b/IsaacSocket/Program.cs
@@ -1,5 +1,7 @@
 using IsaacSocket.Utils;
 using System.Diagnostics;
+using System.Reflection;
+using System.Text.Json;
 
 namespace IsaacSocket;
 
@@ -21,8 +23,45 @@ static void Main()
             }
             // To customize application configuration such as set high DPI settings or default font,
             // see https://aka.ms/applicationconfiguration.
+            _ = CheckUpdate();
             ApplicationConfiguration.Initialize();
             Application.Run(new Form1());
         }
     }
+
+    static async Task CheckUpdate()
+    {
+        using HttpClient client = new();
+        client.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36 Edg/117.0.2045.31");
+        try
+        {
+            string json = await client.GetStringAsync("https://api.github.com/repos/LanbingIce/IsaacSocket-Utility/releases/latest");
+            using JsonDocument doc = JsonDocument.Parse(json);
+            JsonElement root = doc.RootElement;
+
+            string tagName = root.GetProperty("tag_name").GetString() ?? "v1.0";
+            string versionString = tagName[1..];
+            string[] parts = versionString.Split('.');
+            for (int i = 0; i < 4 - parts.Length; i++)
+            {
+                versionString += ".0";
+            }
+
+            Version? clientVersion = Assembly.GetEntryAssembly()?.GetName().Version;
+            Version serverVersion = new(versionString);
+
+            if (serverVersion.CompareTo(clientVersion) > 0)
+            {
+                DialogResult result = MessageBox.Show($"{tagName} 更新说明：{Environment.NewLine}{Environment.NewLine}{root.GetProperty("body").GetString() ?? ""}{Environment.NewLine}{Environment.NewLine}是否要现在下载？", $"软件有更新版本：{ tagName}", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
+                if (result == DialogResult.Yes)
+                {
+                    Process.Start("explorer.exe", root.GetProperty("assets")[0].GetProperty("browser_download_url").GetString() ?? "https://github.com/LanbingIce/IsaacSocket-Utility/releases/latest");
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            await Console.Out.WriteLineAsync(e.Message);
+        }
+    }
 }