diff --git a/DEPLOY.md b/DEPLOY.md
index 18e6cb6..e324b9b 100644
--- a/DEPLOY.md
+++ b/DEPLOY.md
@@ -84,6 +84,43 @@ zlib.output_compression = Off
 chmod 666 /www/chat-app/chat.db
 ```
 
+## Docker 部署（推荐）
+
+### docker-compose.yml 示例
+
+```yaml
+version: '3.8'
+
+services:
+  nginx:
+    image: nginx:alpine
+    ports:
+      - "80:80"
+    volumes:
+      - ./dist:/var/www/dist:ro
+      - ./nginx.conf:/etc/nginx/conf.d/default.conf:ro
+    depends_on:
+      - php
+
+  php:
+    image: php:8.3-fpm
+    volumes:
+      - ./server:/var/www/html
+      - /data:/data          # 数据库挂载到独立目录，避免权限问题
+    environment:
+      - DB_PATH=/data/chat.db    # 通过环境变量覆盖数据库路径
+      - JWT_SECRET=your-secret   # 生产环境务必修改
+      - CHAT_PASSWORD=your-pass  # 生产环境务必修改
+```
+
+### 环境变量说明
+
+| 变量 | 默认值 | 说明 |
+|------|--------|------|
+| `DB_PATH` | `server/chat.db` | SQLite 数据库路径，建议挂载到独立目录 |
+| `JWT_SECRET` | `chat-terminal-secret-key-change-in-production` | JWT 签名密钥，**生产环境必须修改** |
+| `CHAT_PASSWORD` | `admin` | 登录密码，**生产环境必须修改** |
+
 ## 简化版：PHP 内置服务器（仅测试）
 
 ```bash
diff --git a/server/src/config.php b/server/src/config.php
index c09d329..456f7d3 100644
--- a/server/src/config.php
+++ b/server/src/config.php
@@ -1,6 +1,6 @@
 <?php
 return [
-    'db_path' => __DIR__ . '/../chat.db',
+    'db_path' => getenv('DB_PATH') ?: __DIR__ . '/../chat.db',
     'jwt_secret' => getenv('JWT_SECRET') ?: 'chat-terminal-secret-key-change-in-production',
     'password' => getenv('CHAT_PASSWORD') ?: 'admin',
 ];