diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 0446760..cd8d1a9 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -42,6 +42,16 @@ jobs:
             type=sha,prefix=
             type=raw,value=latest,enable={{is_default_branch}}
 
+      - name: Resolve app version
+        id: app-version
+        shell: bash
+        run: |
+          if [[ "$GITHUB_REF" == refs/tags/v* ]]; then
+            echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
+          else
+            echo "version=" >> "$GITHUB_OUTPUT"
+          fi
+
       - name: Build and Push Docker Image
         uses: docker/build-push-action@v6
         with:
@@ -50,6 +60,8 @@ jobs:
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            VITE_APP_VERSION=${{ steps.app-version.outputs.version }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
           platforms: linux/amd64,linux/arm64
diff --git a/BillNote_frontend/Dockerfile b/BillNote_frontend/Dockerfile
index 9e54ab9..da5637c 100644
--- a/BillNote_frontend/Dockerfile
+++ b/BillNote_frontend/Dockerfile
@@ -5,6 +5,10 @@
 ARG BASE_REGISTRY=docker.io
 FROM ${BASE_REGISTRY}/library/node:20-alpine AS builder
 
+# 可由发布 workflow 从 git tag 注入，用于前端 About 页展示版本；未传时由 Vite 回退读取 tauri.conf.json。
+ARG VITE_APP_VERSION=
+ENV VITE_APP_VERSION=${VITE_APP_VERSION}
+
 # pnpm pin 到 9.x：lockfile 是 v9 生成；pnpm 11 要求 Node 22+ 与 node:20 不兼容
 RUN corepack enable && corepack prepare pnpm@9.15.0 --activate
 
diff --git a/BillNote_frontend/src/pages/SettingPage/about.tsx b/BillNote_frontend/src/pages/SettingPage/about.tsx
index 203e5aa..25b69ed 100644
--- a/BillNote_frontend/src/pages/SettingPage/about.tsx
+++ b/BillNote_frontend/src/pages/SettingPage/about.tsx
@@ -8,6 +8,7 @@ import logo from '@/assets/icon.svg'
 import wechatQr from '@/assets/wechat.png'
 
 export default function AboutPage() {
+  const appVersion = __APP_VERSION__
   const images = [
     'https://common-1304618721.cos.ap-chengdu.myqcloud.com/20250504102850.png',
     'https://common-1304618721.cos.ap-chengdu.myqcloud.com/20250504103028.png',
@@ -27,7 +28,7 @@ export default function AboutPage() {
               height={50}
               className="rounded-lg"
             />
-            <h1 className="text-4xl font-bold">BiliNote v2.0.0</h1>
+            <h1 className="text-4xl font-bold">BiliNote v{appVersion}</h1>
           </div>
           <p className="text-muted-foreground mb-6 text-xl italic">
             AI 视频笔记生成工具 让 AI 为你的视频做笔记
diff --git a/BillNote_frontend/src/vite-env.d.ts b/BillNote_frontend/src/vite-env.d.ts
index 11f02fe..54eaa07 100644
--- a/BillNote_frontend/src/vite-env.d.ts
+++ b/BillNote_frontend/src/vite-env.d.ts
@@ -1 +1,3 @@
 /// <reference types="vite/client" />
+
+declare const __APP_VERSION__: string
diff --git a/BillNote_frontend/vite.config.ts b/BillNote_frontend/vite.config.ts
index f45db1b..e2af180 100644
--- a/BillNote_frontend/vite.config.ts
+++ b/BillNote_frontend/vite.config.ts
@@ -1,11 +1,25 @@
 import { defineConfig, loadEnv } from 'vite'
 import react from '@vitejs/plugin-react'
+import fs from 'fs'
 import path from 'path'
 import { fileURLToPath } from 'url'
 import tailwindcss from '@tailwindcss/vite'
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url))
 
+function readAppVersion() {
+  const fallbackVersion = '0.0.0'
+
+  try {
+    const tauriConfigPath = path.resolve(__dirname, 'src-tauri/tauri.conf.json')
+    const tauriConfig = JSON.parse(fs.readFileSync(tauriConfigPath, 'utf-8')) as { version?: string }
+    return tauriConfig.version || fallbackVersion
+  }
+  catch {
+    return fallbackVersion
+  }
+}
+
 // https://vitejs.dev/config/
 export default defineConfig(({ mode }) => {
   // 在 Docker 环境中，父目录可能没有 .env 文件，使用当前目录
@@ -14,9 +28,13 @@ export default defineConfig(({ mode }) => {
 
   const apiBaseUrl = env.VITE_API_BASE_URL || 'http://127.0.0.1:8483'
   const port = parseInt(env.VITE_FRONTEND_PORT || '3015', 10)
+  const appVersion = env.VITE_APP_VERSION || process.env.VITE_APP_VERSION || readAppVersion()
 
   return {
     base: './',
+    define: {
+      __APP_VERSION__: JSON.stringify(appVersion),
+    },
     plugins: [react(), tailwindcss()],
     resolve: {
       alias: {
diff --git a/Dockerfile.complete b/Dockerfile.complete
index 3102be4..94ebf0f 100644
--- a/Dockerfile.complete
+++ b/Dockerfile.complete
@@ -35,6 +35,10 @@ COPY ./backend /tmp/backend
 ARG BASE_REGISTRY=docker.io
 FROM ${BASE_REGISTRY}/library/node:20-alpine AS frontend-builder
 
+# 可由发布 workflow 从 git tag 注入，用于前端 About 页展示版本；未传时由 Vite 回退读取 tauri.conf.json。
+ARG VITE_APP_VERSION=
+ENV VITE_APP_VERSION=${VITE_APP_VERSION}
+
 # pnpm 版本 pin 到 9 系列：
 # - lockfile (BillNote_frontend/pnpm-lock.yaml) 是 lockfileVersion '9.0'，由 pnpm 9 生成
 # - pnpm 11+ 要求 Node 22+，与 node:20 不兼容（ERR_UNKNOWN_BUILTIN_MODULE）