diff --git a/apps/backend/src/services/session/session-page.js b/apps/backend/src/services/session/session-page.ts
similarity index 65%
rename from apps/backend/src/services/session/session-page.js
rename to apps/backend/src/services/session/session-page.ts
index 03bc3093..4abcd16b 100644
--- a/apps/backend/src/services/session/session-page.js
+++ b/apps/backend/src/services/session/session-page.ts
@@ -1,4 +1,4 @@
-// @ts-nocheck
+/// <reference lib="dom" />
 
 import fs from 'node:fs/promises'
 import path from 'node:path'
@@ -7,16 +7,68 @@ import { isRetryableQrCaptureError, logBrowserSessionDebug } from './session-log
 import { captureQqQrImage, ensureQqLoginReady, extractQqQrState } from './session-qq.js'
 import { captureWxQrImage, ensureWxLoginReady, extractWxQrState } from './session-wx.js'
 
+type LoginType = 'qq' | 'wx' | string
+
+type LocatorLike = {
+  count: () => Promise<number>
+  first: () => LocatorLike
+  click: (options?: { timeout?: number }) => Promise<void>
+}
+
+type BrowserPageLike = {
+  locator: (selector: string) => LocatorLike
+  waitForTimeout: (milliseconds: number) => Promise<void>
+  evaluate: <T = any>(callback: any) => Promise<T>
+  reload: (options?: { waitUntil?: string }) => Promise<unknown>
+  goto: (url: string, options?: { waitUntil?: string }) => Promise<unknown>
+}
+
+type SessionForQrCapture = {
+  page: BrowserPageLike
+  loginType: LoginType
+  sessionDir: string
+  qrImagePath?: string
+  qrImageBase64?: string
+  qrUpdatedAt?: string
+  updatedAt?: string
+}
+
+type CaptureSessionQrOptions = {
+  ensureLoginReady?: boolean
+  ensureLoginTab?: typeof ensureLoginTab
+  captureQrImageWithRetry?: typeof captureQrImageWithRetry
+  readFile?: (path: string, encoding: BufferEncoding) => Promise<string>
+  now?: () => string
+}
+
+type CaptureQrImageWithRetryOptions = {
+  captureQqQrImage?: (page: BrowserPageLike, qrImagePath: string) => Promise<unknown>
+  captureWxQrImage?: (page: BrowserPageLike, qrImagePath: string) => Promise<unknown>
+  ensureLoginTab?: typeof ensureLoginTab
+  isRetryableQrCaptureError?: (error: unknown) => boolean
+  logBrowserSessionDebug?: (scope: string, detail?: unknown) => void
+}
+
+type EnsureLoginTabOptions = {
+  ensureQqLoginReady?: (page: BrowserPageLike) => Promise<unknown>
+  ensureWxLoginReady?: (page: BrowserPageLike) => Promise<unknown>
+}
+
+type ExtractQrStateOptions = {
+  extractQqQrState?: (page: BrowserPageLike) => Promise<unknown>
+  extractWxQrState?: (page: BrowserPageLike) => Promise<unknown>
+}
+
 export async function captureSessionQr(
-  session,
+  session: SessionForQrCapture,
   {
     ensureLoginReady = true,
     ensureLoginTab: ensureLoginTabImpl = ensureLoginTab,
     captureQrImageWithRetry: captureQrImageWithRetryImpl = captureQrImageWithRetry,
     readFile = fs.readFile,
     now = () => new Date().toISOString(),
-  } = {},
-) {
+  }: CaptureSessionQrOptions = {},
+): Promise<void> {
   if (ensureLoginReady) {
     await ensureLoginTabImpl(session.page, session.loginType)
   }
@@ -33,19 +85,19 @@ export async function captureSessionQr(
 }
 
 export async function captureQrImageWithRetry(
-  page,
-  loginType,
-  qrImagePath,
+  page: BrowserPageLike,
+  loginType: LoginType,
+  qrImagePath: string,
   {
     captureQqQrImage: captureQqQrImageImpl = captureQqQrImage,
     captureWxQrImage: captureWxQrImageImpl = captureWxQrImage,
     ensureLoginTab: ensureLoginTabImpl = ensureLoginTab,
     isRetryableQrCaptureError: isRetryableQrCaptureErrorImpl = isRetryableQrCaptureError,
     logBrowserSessionDebug: logBrowserSessionDebugImpl = logBrowserSessionDebug,
-  } = {},
-) {
+  }: CaptureQrImageWithRetryOptions = {},
+): Promise<void> {
   const maxAttempts = loginType === 'qq' ? 4 : 3
-  let lastError = null
+  let lastError: unknown = null
 
   for (let attempt = 1; attempt <= maxAttempts; attempt += 1) {
     try {
@@ -94,13 +146,13 @@ export async function captureQrImageWithRetry(
 }
 
 export async function ensureLoginTab(
-  page,
-  loginType,
+  page: BrowserPageLike,
+  loginType: LoginType,
   {
     ensureQqLoginReady: ensureQqLoginReadyImpl = ensureQqLoginReady,
     ensureWxLoginReady: ensureWxLoginReadyImpl = ensureWxLoginReady,
-  } = {},
-) {
+  }: EnsureLoginTabOptions = {},
+): Promise<void> {
   const tabSelector = loginType === 'wx' ? '.wx-tab' : '.qc-tab'
   const loginButton = page.locator('#unlogin')
   let interacted = false
@@ -139,9 +191,9 @@ export async function ensureLoginTab(
   }
 }
 
-export async function extractHostState(page) {
+export async function extractHostState(page: BrowserPageLike) {
   return page.evaluate(() => {
-    const isVisible = (element) => {
+    const isVisible = (element: Element | null) => {
       if (!element) {
         return false
       }
@@ -162,7 +214,7 @@ export async function extractHostState(page) {
   })
 }
 
-export async function reloadActivityPageForPresentation(page, activityUrl) {
+export async function reloadActivityPageForPresentation(page: BrowserPageLike, activityUrl: string): Promise<void> {
   try {
     await page.reload({ waitUntil: 'domcontentloaded' })
   } catch {
@@ -173,13 +225,13 @@ export async function reloadActivityPageForPresentation(page, activityUrl) {
 }
 
 export async function extractQrState(
-  page,
-  loginType,
+  page: BrowserPageLike,
+  loginType: LoginType,
   {
     extractQqQrState: extractQqQrStateImpl = extractQqQrState,
     extractWxQrState: extractWxQrStateImpl = extractWxQrState,
-  } = {},
-) {
+  }: ExtractQrStateOptions = {},
+): Promise<unknown> {
   if (loginType === 'qq') {
     return extractQqQrStateImpl(page)
   }
diff --git a/docs/backend-typescript-migration-plan.md b/docs/backend-typescript-migration-plan.md
index 102dbc9e..c87690ea 100644
--- a/docs/backend-typescript-migration-plan.md
+++ b/docs/backend-typescript-migration-plan.md
@@ -464,6 +464,14 @@
     - `npm run typecheck`
     - `npm run build`
     - `npm test` 共 139 个用例通过
+95. 腾讯浏览器会话页面模块迁移到 `.ts`：
+    - `src/services/session/session-page.ts`
+96. 二维码截图重试、登录 tab 切换、host 状态提取、页面刷新、QQ/WX 二维码状态分发已显式类型化
+97. Docker 内验证通过：
+    - `src/services/session/session.test.js` 共 14 个用例通过
+    - `npm run typecheck`
+    - `npm run build`
+    - `npm test` 共 139 个用例通过
 
 ## 下一步建议