diff --git a/package.json b/package.json
index a2ccbcb70a..e0a18ed1f9 100644
--- a/package.json
+++ b/package.json
@@ -62,6 +62,7 @@
     "@libsql/win32-x64-msvc": "^0.4.7",
     "@strongtz/win32-arm64-msvc": "^0.4.7",
     "jsdom": "26.1.0",
+    "macos-release": "^3.4.0",
     "node-stream-zip": "^1.15.0",
     "notion-helper": "^1.3.22",
     "os-proxy-config": "^1.1.2",
diff --git a/src/main/services/AppUpdater.ts b/src/main/services/AppUpdater.ts
index 82165fd715..effcff00c5 100644
--- a/src/main/services/AppUpdater.ts
+++ b/src/main/services/AppUpdater.ts
@@ -1,5 +1,6 @@
 import { isWin } from '@main/constant'
 import { locales } from '@main/utils/locales'
+import { generateUserAgent } from '@main/utils/systemInfo'
 import { FeedUrl, UpgradeChannel } from '@shared/config/constant'
 import { IpcChannel } from '@shared/IpcChannel'
 import { CancellationToken, UpdateInfo } from 'builder-util-runtime'
@@ -24,6 +25,10 @@ export default class AppUpdater {
     autoUpdater.forceDevUpdateConfig = !app.isPackaged
     autoUpdater.autoDownload = configManager.getAutoUpdate()
     autoUpdater.autoInstallOnAppQuit = configManager.getAutoUpdate()
+    autoUpdater.requestHeaders = {
+      ...autoUpdater.requestHeaders,
+      'User-Agent': generateUserAgent()
+    }
 
     autoUpdater.on('error', (error) => {
       // 简单记录错误信息和时间戳
diff --git a/src/main/utils/systemInfo.ts b/src/main/utils/systemInfo.ts
new file mode 100644
index 0000000000..84db4efed7
--- /dev/null
+++ b/src/main/utils/systemInfo.ts
@@ -0,0 +1,92 @@
+import { app } from 'electron'
+import macosRelease from 'macos-release'
+import os from 'os'
+
+/**
+ * System information interface
+ */
+export interface SystemInfo {
+  platform: NodeJS.Platform
+  arch: string
+  osRelease: string
+  appVersion: string
+  osString: string
+  archString: string
+}
+
+/**
+ * Get basic system constants for quick access
+ * @returns {Object} Basic system constants
+ */
+export function getSystemConstants() {
+  return {
+    platform: process.platform,
+    arch: process.arch,
+    osRelease: os.release(),
+    appVersion: app.getVersion()
+  }
+}
+
+/**
+ * Get system information
+ * @returns {SystemInfo} Complete system information object
+ */
+export function getSystemInfo(): SystemInfo {
+  const platform = process.platform
+  const arch = process.arch
+  const osRelease = os.release()
+  const appVersion = app.getVersion()
+
+  let osString = ''
+
+  switch (platform) {
+    case 'win32': {
+      // Get Windows version
+      const parts = osRelease.split('.')
+      const buildNumber = parseInt(parts[2], 10)
+      osString = buildNumber >= 22000 ? 'Windows 11' : 'Windows 10'
+      break
+    }
+    case 'darwin': {
+      // macOS version handling using macos-release for better accuracy
+      try {
+        const macVersionInfo = macosRelease()
+        const versionString = macVersionInfo.version.replace(/\./g, '_') // 15.0.0 -> 15_0_0
+        osString = arch === 'arm64' ? `Mac OS X ${versionString}` : `Intel Mac OS X ${versionString}` // Mac OS X 15_0_0
+      } catch (error) {
+        // Fallback to original logic if macos-release fails
+        const macVersion = osRelease.split('.').slice(0, 2).join('_')
+        osString = arch === 'arm64' ? `Mac OS X ${macVersion}` : `Intel Mac OS X ${macVersion}`
+      }
+      break
+    }
+    case 'linux': {
+      osString = `Linux ${arch}`
+      break
+    }
+    default: {
+      osString = `${platform} ${arch}`
+    }
+  }
+
+  const archString = arch === 'x64' ? 'x86_64' : arch === 'arm64' ? 'arm64' : arch
+
+  return {
+    platform,
+    arch,
+    osRelease,
+    appVersion,
+    osString,
+    archString
+  }
+}
+
+/**
+ * Generate User-Agent string based on user system data
+ * @returns {string} Dynamically generated User-Agent string
+ */
+export function generateUserAgent(): string {
+  const systemInfo = getSystemInfo()
+
+  return `Mozilla/5.0 (${systemInfo.osString}; ${systemInfo.archString}) AppleWebKit/537.36 (KHTML, like Gecko) CherryStudio/${systemInfo.appVersion} Chrome/124.0.0.0 Safari/537.36`
+}
diff --git a/yarn.lock b/yarn.lock
index aaf7a9f457..799c480eca 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5703,6 +5703,7 @@ __metadata:
     lodash: "npm:^4.17.21"
     lru-cache: "npm:^11.1.0"
     lucide-react: "npm:^0.487.0"
+    macos-release: "npm:^3.4.0"
     markdown-it: "npm:^14.1.0"
     mermaid: "npm:^11.6.0"
     mime: "npm:^4.0.4"
@@ -12194,6 +12195,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"macos-release@npm:^3.4.0":
+  version: 3.4.0
+  resolution: "macos-release@npm:3.4.0"
+  checksum: 10c0/cb6ea203cc2a2b2cc2214db4658d0da0e52f8298c5c43c94cf9cb9e871daac59e4e56a2559859727a4b43b0afec1123f998ef62c58d1ac6c6c8a5c8a808330cb
+  languageName: node
+  linkType: hard
+
 "magic-string@npm:^0.30.17":
   version: 0.30.17
   resolution: "magic-string@npm:0.30.17"