diff --git a/electron/main/index.ts b/electron/main/index.ts
index 7539482..93af293 100644
--- a/electron/main/index.ts
+++ b/electron/main/index.ts
@@ -5,6 +5,7 @@ import * as fs from 'fs/promises'
 import { checkUpdate } from './update'
 import mainIpcMain from './ipcMain'
 import { initAnalytics, trackDailyActive } from './analytics'
+import { initProxy } from './network/proxy'
 
 class MainProcess {
   mainWindow: BrowserWindow | null
@@ -46,6 +47,7 @@ class MainProcess {
   // 初始化程序
   async init() {
     initAnalytics()
+    initProxy() // 初始化代理配置
 
     // 注册应用协议
     app.setAsDefaultProtocolClient('chatlab')
diff --git a/electron/main/ipc/network.ts b/electron/main/ipc/network.ts
new file mode 100644
index 0000000..1daec17
--- /dev/null
+++ b/electron/main/ipc/network.ts
@@ -0,0 +1,65 @@
+/**
+ * 网络设置 IPC 处理器
+ * 处理代理配置的读取、保存和测试
+ */
+
+import { ipcMain } from 'electron'
+import type { IpcContext } from './types'
+import {
+  loadProxyConfig,
+  saveProxyConfig,
+  testProxyConnection,
+  validateProxyUrl,
+  type ProxyConfig,
+} from '../network/proxy'
+
+/**
+ * 注册网络设置相关的 IPC 处理器
+ */
+export function registerNetworkHandlers(_context: IpcContext): void {
+  console.log('[IpcMain] Registering network handlers...')
+
+  /**
+   * 获取代理配置
+   */
+  ipcMain.handle('network:getProxyConfig', (): ProxyConfig => {
+    return loadProxyConfig()
+  })
+
+  /**
+   * 保存代理配置
+   */
+  ipcMain.handle(
+    'network:saveProxyConfig',
+    (_event, config: ProxyConfig): { success: boolean; error?: string } => {
+      try {
+        // 如果启用了代理，验证 URL 格式
+        if (config.enabled && config.url) {
+          const validation = validateProxyUrl(config.url)
+          if (!validation.valid) {
+            return { success: false, error: validation.error }
+          }
+        }
+
+        saveProxyConfig(config)
+        return { success: true }
+      } catch (error) {
+        const errorMessage = error instanceof Error ? error.message : String(error)
+        return { success: false, error: `保存配置失败: ${errorMessage}` }
+      }
+    }
+  )
+
+  /**
+   * 测试代理连接
+   */
+  ipcMain.handle(
+    'network:testProxyConnection',
+    async (_event, proxyUrl: string): Promise<{ success: boolean; error?: string }> => {
+      return testProxyConnection(proxyUrl)
+    }
+  )
+
+  console.log('[IpcMain] Network handlers registered')
+}
+
diff --git a/electron/main/ipcMain.ts b/electron/main/ipcMain.ts
index a4de436..4463c39 100644
--- a/electron/main/ipcMain.ts
+++ b/electron/main/ipcMain.ts
@@ -12,6 +12,7 @@ import { registerMergeHandlers, initMergeModule } from './ipc/merge'
 import { registerAIHandlers } from './ipc/ai'
 import { registerMessagesHandlers } from './ipc/messages'
 import { registerCacheHandlers } from './ipc/cache'
+import { registerNetworkHandlers } from './ipc/network'
 import { registerAnalyticsHandlers } from './analytics'
 // 导入 Worker 模块（用于异步分析查询和流式导入）
 import * as worker from './worker/workerManager'
@@ -43,6 +44,7 @@ const mainIpcMain = (win: BrowserWindow) => {
   registerAIHandlers(context)
   registerMessagesHandlers(context)
   registerCacheHandlers(context)
+  registerNetworkHandlers(context)
   registerAnalyticsHandlers()
 
   console.log('[IpcMain] All IPC handlers registered successfully')
diff --git a/electron/main/network/index.ts b/electron/main/network/index.ts
new file mode 100644
index 0000000..20b1af3
--- /dev/null
+++ b/electron/main/network/index.ts
@@ -0,0 +1,6 @@
+/**
+ * 网络模块入口
+ * 导出代理配置功能
+ */
+
+export * from './proxy'
diff --git a/electron/main/network/proxy.ts b/electron/main/network/proxy.ts
new file mode 100644
index 0000000..8bb8be6
--- /dev/null
+++ b/electron/main/network/proxy.ts
@@ -0,0 +1,252 @@
+/**
+ * 代理配置管理模块
+ * 提供 HTTP/HTTPS 代理的配置存储、读取和连接测试
+ */
+
+import * as fs from 'fs'
+import * as path from 'path'
+import { app, session } from 'electron'
+
+// 代理配置接口
+export interface ProxyConfig {
+  enabled: boolean
+  url: string // 完整的代理 URL，如 http://127.0.0.1:7890
+}
+
+// 默认配置
+const DEFAULT_CONFIG: ProxyConfig = {
+  enabled: false,
+  url: '',
+}
+
+// 配置文件路径
+let CONFIG_PATH: string | null = null
+
+function getConfigPath(): string {
+  if (CONFIG_PATH) return CONFIG_PATH
+
+  try {
+    const docPath = app.getPath('documents')
+    CONFIG_PATH = path.join(docPath, 'ChatLab', 'settings', 'proxy.json')
+  } catch {
+    CONFIG_PATH = path.join(process.cwd(), 'settings', 'proxy.json')
+  }
+
+  return CONFIG_PATH
+}
+
+/**
+ * 加载代理配置
+ */
+export function loadProxyConfig(): ProxyConfig {
+  const configPath = getConfigPath()
+
+  if (!fs.existsSync(configPath)) {
+    return { ...DEFAULT_CONFIG }
+  }
+
+  try {
+    const content = fs.readFileSync(configPath, 'utf-8')
+    const data = JSON.parse(content)
+    return {
+      enabled: Boolean(data.enabled),
+      url: String(data.url || ''),
+    }
+  } catch {
+    return { ...DEFAULT_CONFIG }
+  }
+}
+
+/**
+ * 保存代理配置
+ */
+export function saveProxyConfig(config: ProxyConfig): void {
+  const configPath = getConfigPath()
+  const dir = path.dirname(configPath)
+
+  if (!fs.existsSync(dir)) {
+    fs.mkdirSync(dir, { recursive: true })
+  }
+
+  fs.writeFileSync(configPath, JSON.stringify(config, null, 2), 'utf-8')
+
+  // 保存后立即应用代理设置到 Electron session
+  applyProxyToSession()
+}
+
+/**
+ * 验证代理 URL 格式
+ */
+export function validateProxyUrl(url: string): { valid: boolean; error?: string } {
+  if (!url) {
+    return { valid: false, error: '代理地址不能为空' }
+  }
+
+  try {
+    const parsed = new URL(url)
+    if (!['http:', 'https:'].includes(parsed.protocol)) {
+      return { valid: false, error: '仅支持 http:// 或 https:// 协议' }
+    }
+    if (!parsed.hostname) {
+      return { valid: false, error: '代理地址格式无效' }
+    }
+    return { valid: true }
+  } catch {
+    return { valid: false, error: '代理地址格式无效，请使用 http://host:port 格式' }
+  }
+}
+
+/**
+ * 将代理设置应用到 Electron session
+ * 这会影响所有通过 Electron 发起的网络请求（包括主进程的 fetch）
+ */
+export async function applyProxyToSession(): Promise<void> {
+  const config = loadProxyConfig()
+
+  try {
+    if (config.enabled && config.url) {
+      const validation = validateProxyUrl(config.url)
+      if (validation.valid) {
+        // 设置代理规则
+        await session.defaultSession.setProxy({
+          proxyRules: config.url,
+        })
+        console.log(`[Proxy] 代理已启用: ${config.url}`)
+      }
+    } else {
+      // 清除代理设置
+      await session.defaultSession.setProxy({
+        proxyRules: '',
+      })
+      console.log('[Proxy] 代理已禁用')
+    }
+  } catch (error) {
+    console.error('[Proxy] 设置代理失败:', error)
+  }
+}
+
+/**
+ * 测试代理连接
+ * 通过代理请求一个可靠的 HTTPS 地址来验证代理是否可用
+ */
+export async function testProxyConnection(proxyUrl: string): Promise<{ success: boolean; error?: string }> {
+  // 先验证格式
+  const validation = validateProxyUrl(proxyUrl)
+  if (!validation.valid) {
+    return { success: false, error: validation.error }
+  }
+
+  // 测试 URL 列表（按优先级）
+  const testUrls = [
+    'https://www.google.com',
+    'https://www.cloudflare.com',
+    'https://api.deepseek.com',
+  ]
+
+  try {
+    // 临时设置代理
+    await session.defaultSession.setProxy({
+      proxyRules: proxyUrl,
+    })
+
+    // 使用 Electron 的 net 模块测试连接
+    const { net } = await import('electron')
+
+    let lastError: string = ''
+
+    for (const testUrl of testUrls) {
+      try {
+        const result = await new Promise<{ success: boolean; error?: string }>((resolve) => {
+          const request = net.request({
+            method: 'HEAD',
+            url: testUrl,
+          })
+
+          const timeout = setTimeout(() => {
+            request.abort()
+            resolve({ success: false, error: '连接超时' })
+          }, 10000)
+
+          request.on('response', (response) => {
+            clearTimeout(timeout)
+            // 任何响应都说明代理可用
+            if (response.statusCode < 500) {
+              resolve({ success: true })
+            } else {
+              resolve({ success: false, error: `HTTP ${response.statusCode}` })
+            }
+          })
+
+          request.on('error', (error) => {
+            clearTimeout(timeout)
+            resolve({ success: false, error: error.message })
+          })
+
+          request.end()
+        })
+
+        if (result.success) {
+          // 恢复之前的代理设置
+          await applyProxyToSession()
+          return { success: true }
+        }
+
+        lastError = result.error || ''
+      } catch (e) {
+        lastError = e instanceof Error ? e.message : String(e)
+      }
+    }
+
+    // 恢复之前的代理设置
+    await applyProxyToSession()
+    return { success: false, error: lastError || '无法通过代理连接到测试服务器' }
+  } catch (error) {
+    // 恢复之前的代理设置
+    await applyProxyToSession()
+
+    const errorMessage = error instanceof Error ? error.message : String(error)
+
+    // 友好的错误提示
+    if (errorMessage.includes('ECONNREFUSED')) {
+      return { success: false, error: '连接被拒绝，请检查代理服务器是否运行中' }
+    }
+    if (errorMessage.includes('ETIMEDOUT') || errorMessage.includes('timeout')) {
+      return { success: false, error: '连接超时，请检查代理地址和端口' }
+    }
+    if (errorMessage.includes('ENOTFOUND')) {
+      return { success: false, error: '无法解析代理服务器地址' }
+    }
+
+    return { success: false, error: `代理连接失败: ${errorMessage}` }
+  }
+}
+
+/**
+ * 获取当前有效的代理 URL
+ * 如果代理已启用且 URL 有效，返回代理 URL，否则返回 undefined
+ */
+export function getActiveProxyUrl(): string | undefined {
+  const config = loadProxyConfig()
+  if (config.enabled && config.url) {
+    const validation = validateProxyUrl(config.url)
+    if (validation.valid) {
+      return config.url
+    }
+  }
+  return undefined
+}
+
+/**
+ * 初始化代理模块
+ * 应用启动时调用，加载并应用代理配置
+ */
+export function initProxy(): void {
+  // 延迟执行，确保 app ready
+  if (app.isReady()) {
+    applyProxyToSession()
+  } else {
+    app.whenReady().then(() => {
+      applyProxyToSession()
+    })
+  }
+}
diff --git a/electron/main/update.ts b/electron/main/update.ts
index d228128..30965b5 100644
--- a/electron/main/update.ts
+++ b/electron/main/update.ts
@@ -2,9 +2,32 @@ import { dialog, app } from 'electron'
 import { autoUpdater } from 'electron-updater'
 import { platform } from '@electron-toolkit/utils'
 import { logger } from './logger'
+import { getActiveProxyUrl } from './network/proxy'
+
+/**
+ * 配置自动更新的代理设置
+ * electron-updater 通过环境变量读取代理配置
+ */
+function configureUpdateProxy(): void {
+  const proxyUrl = getActiveProxyUrl()
+
+  if (proxyUrl) {
+    // 设置环境变量，electron-updater 会自动读取
+    process.env.HTTPS_PROXY = proxyUrl
+    process.env.HTTP_PROXY = proxyUrl
+    logger.info(`[Update] 使用代理: ${proxyUrl}`)
+  } else {
+    // 清除代理环境变量
+    delete process.env.HTTPS_PROXY
+    delete process.env.HTTP_PROXY
+  }
+}
 
 let isFirstShow = true
 const checkUpdate = (win) => {
+  // 配置代理
+  configureUpdateProxy()
+
   autoUpdater.autoDownload = false // 自动下载
   autoUpdater.autoInstallOnAppQuit = true // 应用退出后自动安装
 
diff --git a/electron/preload/index.d.ts b/electron/preload/index.d.ts
index 655bab0..ce457b2 100644
--- a/electron/preload/index.d.ts
+++ b/electron/preload/index.d.ts
@@ -382,6 +382,18 @@ interface CacheApi {
   ) => Promise<{ success: boolean; filePath?: string; error?: string }>
 }
 
+// Network API 类型 - 网络代理配置
+interface ProxyConfig {
+  enabled: boolean
+  url: string
+}
+
+interface NetworkApi {
+  getProxyConfig: () => Promise<ProxyConfig>
+  saveProxyConfig: (config: ProxyConfig) => Promise<{ success: boolean; error?: string }>
+  testProxyConnection: (proxyUrl: string) => Promise<{ success: boolean; error?: string }>
+}
+
 declare global {
   interface Window {
     electron: ElectronAPI
@@ -392,6 +404,7 @@ declare global {
     llmApi: LlmApi
     agentApi: AgentApi
     cacheApi: CacheApi
+    networkApi: NetworkApi
   }
 }
 
@@ -403,11 +416,12 @@ export {
   LlmApi,
   AgentApi,
   CacheApi,
+  NetworkApi,
+  ProxyConfig,
   SearchMessageResult,
   AIConversation,
   AIMessage,
   LLMProviderInfo,
-  LLMConfig,
   AIServiceConfigDisplay,
   LLMChatMessage,
   LLMChatOptions,
diff --git a/electron/preload/index.ts b/electron/preload/index.ts
index 53a461f..2a3f22b 100644
--- a/electron/preload/index.ts
+++ b/electron/preload/index.ts
@@ -935,6 +935,35 @@ const agentApi = {
   },
 }
 
+// Network API - 网络设置
+interface ProxyConfig {
+  enabled: boolean
+  url: string
+}
+
+const networkApi = {
+  /**
+   * 获取代理配置
+   */
+  getProxyConfig: (): Promise<ProxyConfig> => {
+    return ipcRenderer.invoke('network:getProxyConfig')
+  },
+
+  /**
+   * 保存代理配置
+   */
+  saveProxyConfig: (config: ProxyConfig): Promise<{ success: boolean; error?: string }> => {
+    return ipcRenderer.invoke('network:saveProxyConfig', config)
+  },
+
+  /**
+   * 测试代理连接
+   */
+  testProxyConnection: (proxyUrl: string): Promise<{ success: boolean; error?: string }> => {
+    return ipcRenderer.invoke('network:testProxyConnection', proxyUrl)
+  },
+}
+
 // Cache API - 缓存管理
 interface CacheDirectoryInfo {
   id: string
@@ -1057,6 +1086,7 @@ if (process.contextIsolated) {
     contextBridge.exposeInMainWorld('llmApi', llmApi)
     contextBridge.exposeInMainWorld('agentApi', agentApi)
     contextBridge.exposeInMainWorld('cacheApi', cacheApi)
+    contextBridge.exposeInMainWorld('networkApi', networkApi)
   } catch (error) {
     console.error(error)
   }
@@ -1077,4 +1107,6 @@ if (process.contextIsolated) {
   window.agentApi = agentApi
   // @ts-ignore (define in dts)
   window.cacheApi = cacheApi
+  // @ts-ignore (define in dts)
+  window.networkApi = networkApi
 }
diff --git a/src/components/common/settings/AboutTab.vue b/src/components/common/settings/AboutTab.vue
index a5532f1..b10c02d 100644
--- a/src/components/common/settings/AboutTab.vue
+++ b/src/components/common/settings/AboutTab.vue
@@ -89,15 +89,6 @@ onMounted(() => {
           </UButton>
         </div>
       </div>
-      <!-- 更新策略提示 -->
-      <UAlert
-        class="mt-3"
-        color="info"
-        variant="subtle"
-        icon="i-heroicons-light-bulb"
-        title="更新策略"
-        description="项目前期更新频繁，为避免打扰，小版本不会自动提醒，仅中版本以上才会推送。如需获取小版本更新，需手动点击检查更新。"
-      />
     </div>
 
     <!-- 隐私设置 -->
diff --git a/src/components/common/settings/BasicSettingsTab.vue b/src/components/common/settings/BasicSettingsTab.vue
index cc59905..758d334 100644
--- a/src/components/common/settings/BasicSettingsTab.vue
+++ b/src/components/common/settings/BasicSettingsTab.vue
@@ -2,6 +2,7 @@
 import { storeToRefs } from 'pinia'
 import { useLayoutStore } from '@/stores/layout'
 import { useColorMode } from '@vueuse/core'
+import NetworkSettingsSection from './NetworkSettingsSection.vue'
 
 // Store
 const layoutStore = useLayoutStore()
@@ -56,5 +57,8 @@ const colorModeOptions = [
         </div>
       </div>
     </div>
+
+    <!-- 网络设置 -->
+    <NetworkSettingsSection />
   </div>
 </template>
diff --git a/src/components/common/settings/NetworkSettingsSection.vue b/src/components/common/settings/NetworkSettingsSection.vue
new file mode 100644
index 0000000..50e2325
--- /dev/null
+++ b/src/components/common/settings/NetworkSettingsSection.vue
@@ -0,0 +1,210 @@
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+
+// 代理配置
+const proxyEnabled = ref(false)
+const proxyUrl = ref('')
+const proxyUrlError = ref('')
+const isSavingProxy = ref(false)
+const isTestingProxy = ref(false)
+const proxyTestResult = ref<{ success: boolean; message: string } | null>(null)
+
+// 加载代理配置
+async function loadProxyConfig() {
+  try {
+    const config = await window.networkApi.getProxyConfig()
+    proxyEnabled.value = config.enabled
+    proxyUrl.value = config.url
+  } catch (error) {
+    console.error('获取代理配置失败:', error)
+  }
+}
+
+// 验证代理 URL 格式
+function validateProxyUrl(url: string): boolean {
+  if (!url) {
+    proxyUrlError.value = ''
+    return true
+  }
+
+  try {
+    const parsed = new URL(url)
+    if (!['http:', 'https:'].includes(parsed.protocol)) {
+      proxyUrlError.value = '仅支持 http:// 或 https:// 协议'
+      return false
+    }
+    proxyUrlError.value = ''
+    return true
+  } catch {
+    proxyUrlError.value = '请输入有效的代理地址，格式如 http://127.0.0.1:7890'
+    return false
+  }
+}
+
+// 保存代理配置
+async function saveProxyConfig() {
+  // 清除测试结果
+  proxyTestResult.value = null
+
+  // 如果启用了代理但没填地址
+  if (proxyEnabled.value && !proxyUrl.value.trim()) {
+    proxyUrlError.value = '请输入代理地址'
+    return
+  }
+
+  // 验证格式
+  if (proxyEnabled.value && !validateProxyUrl(proxyUrl.value)) {
+    return
+  }
+
+  isSavingProxy.value = true
+  try {
+    const result = await window.networkApi.saveProxyConfig({
+      enabled: proxyEnabled.value,
+      url: proxyUrl.value.trim(),
+    })
+
+    if (!result.success) {
+      proxyUrlError.value = result.error || '保存失败'
+    }
+  } catch (error) {
+    console.error('保存代理配置失败:', error)
+    proxyUrlError.value = '保存失败'
+  } finally {
+    isSavingProxy.value = false
+  }
+}
+
+// 切换代理开关
+async function toggleProxy(enabled: boolean) {
+  proxyEnabled.value = enabled
+  proxyTestResult.value = null
+
+  // 如果关闭代理，立即保存
+  if (!enabled) {
+    await saveProxyConfig()
+  }
+}
+
+// 代理地址输入处理
+function handleProxyUrlInput() {
+  proxyTestResult.value = null
+  if (proxyUrl.value) {
+    validateProxyUrl(proxyUrl.value)
+  } else {
+    proxyUrlError.value = ''
+  }
+}
+
+// 代理地址失去焦点时保存
+async function handleProxyUrlBlur() {
+  if (proxyEnabled.value && proxyUrl.value.trim()) {
+    await saveProxyConfig()
+  }
+}
+
+// 测试代理连接
+async function testProxyConnection() {
+  if (!proxyUrl.value.trim()) {
+    proxyUrlError.value = '请先输入代理地址'
+    return
+  }
+
+  if (!validateProxyUrl(proxyUrl.value)) {
+    return
+  }
+
+  isTestingProxy.value = true
+  proxyTestResult.value = null
+
+  try {
+    const result = await window.networkApi.testProxyConnection(proxyUrl.value.trim())
+    proxyTestResult.value = {
+      success: result.success,
+      message: result.success ? '代理连接成功！' : result.error || '连接失败',
+    }
+  } catch (error) {
+    proxyTestResult.value = {
+      success: false,
+      message: '测试失败：' + (error instanceof Error ? error.message : String(error)),
+    }
+  } finally {
+    isTestingProxy.value = false
+  }
+}
+
+// 组件挂载时加载数据
+onMounted(() => {
+  loadProxyConfig()
+})
+</script>
+
+<template>
+  <div>
+    <h3 class="mb-3 flex items-center gap-2 text-sm font-semibold text-gray-900 dark:text-white">
+      <UIcon name="i-heroicons-globe-alt" class="h-4 w-4 text-cyan-500" />
+      网络设置
+    </h3>
+    <div class="rounded-lg border border-gray-200 bg-gray-50 p-4 dark:border-gray-700 dark:bg-gray-800/50">
+      <!-- 代理开关 -->
+      <div class="flex items-center justify-between">
+        <div>
+          <p class="text-sm font-medium text-gray-900 dark:text-white">启用代理</p>
+          <p class="text-xs text-gray-500 dark:text-gray-400">通过代理服务器连接网络（适用于需要代理的网络环境）</p>
+        </div>
+        <USwitch :model-value="proxyEnabled" @update:model-value="toggleProxy" />
+      </div>
+
+      <!-- 代理地址输入 -->
+      <div v-if="proxyEnabled" class="mt-4 space-y-3">
+        <div>
+          <label class="mb-1.5 block text-xs font-medium text-gray-700 dark:text-gray-300"> 代理地址 </label>
+          <UInput
+            v-model="proxyUrl"
+            placeholder="http://127.0.0.1:7890"
+            :color="proxyUrlError ? 'error' : 'neutral'"
+            size="sm"
+            class="w-full"
+            @input="handleProxyUrlInput"
+            @blur="handleProxyUrlBlur"
+          />
+          <p v-if="proxyUrlError" class="mt-1 text-xs text-red-500">
+            {{ proxyUrlError }}
+          </p>
+          <p v-else class="mt-1 text-xs text-gray-400">支持 HTTP/HTTPS 代理，格式如：http://127.0.0.1:7890</p>
+        </div>
+
+        <!-- 测试连接按钮和结果 -->
+        <div class="flex items-center gap-3">
+          <UButton
+            :loading="isTestingProxy"
+            :disabled="isTestingProxy || !proxyUrl.trim()"
+            color="neutral"
+            variant="soft"
+            size="sm"
+            @click="testProxyConnection"
+          >
+            <UIcon name="i-heroicons-signal" class="mr-1 h-4 w-4" />
+            {{ isTestingProxy ? '测试中...' : '测试连接' }}
+          </UButton>
+
+          <div v-if="proxyTestResult" class="flex items-center gap-1.5">
+            <UIcon
+              :name="proxyTestResult.success ? 'i-heroicons-check-circle' : 'i-heroicons-x-circle'"
+              :class="['h-4 w-4', proxyTestResult.success ? 'text-green-500' : 'text-red-500']"
+            />
+            <span
+              :class="[
+                'text-xs',
+                proxyTestResult.success ? 'text-green-600 dark:text-green-400' : 'text-red-600 dark:text-red-400',
+              ]"
+            >
+              {{ proxyTestResult.message }}
+            </span>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+