diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 000000000..57de429f4
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,68 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual Environment
+venv/
+ENV/
+env/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Environment
+.env
+.env.local
+.env.*.local
+
+# Database
+*.db
+*.sqlite3
+
+# Logs
+logs/
+*.log
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+
+# Docker
+.dockerignore
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Temporary
+tmp/
+temp/
+*.tmp
+
+# Backup
+*.bak
+*.backup
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 000000000..955556ee4
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,32 @@
+# 小虾 SaaS - Python 后端
+FROM python:3.12-slim
+
+# 设置工作目录
+WORKDIR /app
+
+# 安装系统依赖
+RUN apt-get update && apt-get install -y \
+    gcc \
+    postgresql-client \
+    && rm -rf /var/lib/apt/lists/*
+
+# 复制依赖文件
+COPY requirements.txt .
+
+# 安装 Python 依赖
+RUN pip install --no-cache-dir -r requirements.txt
+
+# 复制应用代码
+COPY packages/ ./packages/
+COPY apps/ ./apps/
+COPY migrations/ ./migrations/
+
+# 暴露端口
+EXPOSE 8000
+
+# 健康检查
+HEALTHCHECK --interval=30s --timeout=3s --start-period=40s --retries=3 \
+  CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')" || exit 1
+
+# 启动命令
+CMD ["uvicorn", "apps.api.main:app", "--host", "0.0.0.0", "--port", "8000"]
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 000000000..1b414d07a
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,73 @@
+version: '3.8'
+
+services:
+  # PostgreSQL 数据库
+  postgres:
+    image: postgres:16-alpine
+    container_name: xiaoxia-postgres
+    environment:
+      POSTGRES_DB: xiaoxia_saas
+      POSTGRES_USER: xiaoxia_user
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ./migrations:/docker-entrypoint-initdb.d:ro
+    ports:
+      - "5432:5432"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U xiaoxia_user"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    restart: unless-stopped
+
+  # Redis 缓存
+  redis:
+    image: redis:7-alpine
+    container_name: xiaoxia-redis
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    command: redis-server --appendonly yes
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 3s
+      retries: 5
+    restart: unless-stopped
+
+  # 小虾 SaaS API
+  api:
+    build: .
+    container_name: xiaoxia-api
+    environment:
+      DATABASE_URL: postgresql://xiaoxia_user:${POSTGRES_PASSWORD:-changeme}@postgres:5432/xiaoxia_saas
+      REDIS_URL: redis://redis:6379/0
+      JWT_SECRET_KEY: ${JWT_SECRET_KEY:-your-secret-key-change-in-production}
+      SMTP_HOST: ${SMTP_HOST:-smtp.gmail.com}
+      SMTP_PORT: ${SMTP_PORT:-587}
+      SMTP_USER: ${SMTP_USER}
+      SMTP_PASSWORD: ${SMTP_PASSWORD}
+      BASE_URL: ${BASE_URL:-http://localhost:3000}
+      ENVIRONMENT: ${ENVIRONMENT:-production}
+    ports:
+      - "8000:8000"
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    volumes:
+      - ./logs:/app/logs
+    restart: unless-stopped
+
+volumes:
+  postgres_data:
+    driver: local
+  redis_data:
+    driver: local
+
+networks:
+  default:
+    name: xiaoxia-network
diff --git a/docs/DOCKER-DEPLOYMENT.md b/docs/DOCKER-DEPLOYMENT.md
new file mode 100644
index 000000000..dfb6e6878
--- /dev/null
+++ b/docs/DOCKER-DEPLOYMENT.md
@@ -0,0 +1,276 @@
+# 小虾 SaaS Docker 部署指南
+
+## 🐳 快速启动
+
+### 1. 准备环境变量
+
+```bash
+# 创建 .env 文件
+cat > .env << EOF
+# PostgreSQL
+POSTGRES_PASSWORD=your_secure_password
+
+# JWT
+JWT_SECRET_KEY=$(openssl rand -base64 32)
+
+# Email (Gmail example)
+SMTP_HOST=smtp.gmail.com
+SMTP_PORT=587
+SMTP_USER=your-email@gmail.com
+SMTP_PASSWORD=your-app-password
+
+# App
+BASE_URL=https://yourdomain.com
+ENVIRONMENT=production
+EOF
+```
+
+### 2. 启动所有服务
+
+```bash
+# 启动（首次会自动构建镜像）
+docker-compose up -d
+
+# 查看日志
+docker-compose logs -f api
+
+# 查看状态
+docker-compose ps
+```
+
+### 3. 验证部署
+
+```bash
+# 健康检查
+curl http://localhost:8000/health
+
+# API 文档
+open http://localhost:8000/docs
+```
+
+---
+
+## 🔧 常用命令
+
+### 服务管理
+
+```bash
+# 启动所有服务
+docker-compose up -d
+
+# 停止所有服务
+docker-compose down
+
+# 重启 API
+docker-compose restart api
+
+# 查看日志
+docker-compose logs -f [service_name]
+
+# 进入容器
+docker-compose exec api bash
+docker-compose exec postgres psql -U xiaoxia_user xiaoxia_saas
+```
+
+### 数据库操作
+
+```bash
+# 备份数据库
+docker-compose exec postgres pg_dump -U xiaoxia_user xiaoxia_saas > backup.sql
+
+# 恢复数据库
+docker-compose exec -T postgres psql -U xiaoxia_user xiaoxia_saas < backup.sql
+
+# 查看数据库状态
+docker-compose exec postgres psql -U xiaoxia_user -c "\l"
+```
+
+### 更新部署
+
+```bash
+# 拉取最新代码
+git pull
+
+# 重新构建镜像
+docker-compose build api
+
+# 重启服务
+docker-compose up -d api
+```
+
+---
+
+## 📦 单独构建镜像
+
+```bash
+# 构建
+docker build -t xiaoxia-saas:latest .
+
+# 运行
+docker run -d \
+  --name xiaoxia-api \
+  -p 8000:8000 \
+  --env-file .env \
+  xiaoxia-saas:latest
+
+# 推送到仓库
+docker tag xiaoxia-saas:latest your-registry/xiaoxia-saas:latest
+docker push your-registry/xiaoxia-saas:latest
+```
+
+---
+
+## 🚀 生产环境部署
+
+### 1. 使用外部数据库
+
+修改 `docker-compose.yml`，注释掉 postgres 和 redis 服务，直接使用云数据库：
+
+```yaml
+services:
+  api:
+    environment:
+      DATABASE_URL: postgresql://user:pass@your-rds.amazonaws.com:5432/xiaoxia_saas
+      REDIS_URL: redis://your-elasticache.amazonaws.com:6379/0
+```
+
+### 2. 反向代理（Nginx）
+
+```nginx
+server {
+    listen 80;
+    server_name api.yourdomain.com;
+
+    location / {
+        proxy_pass http://localhost:8000;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}
+```
+
+### 3. SSL 证书（Let's Encrypt）
+
+```bash
+# 安装 certbot
+apt-get install certbot python3-certbot-nginx
+
+# 获取证书
+certbot --nginx -d api.yourdomain.com
+```
+
+### 4. 自动重启（systemd）
+
+创建 `/etc/systemd/system/xiaoxia-api.service`：
+
+```ini
+[Unit]
+Description=小虾 SaaS API
+Requires=docker.service
+After=docker.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+WorkingDirectory=/opt/xiaoxia-saas
+ExecStart=/usr/bin/docker-compose up -d
+ExecStop=/usr/bin/docker-compose down
+TimeoutStartSec=0
+
+[Install]
+WantedBy=multi-user.target
+```
+
+启用：
+```bash
+systemctl enable xiaoxia-api
+systemctl start xiaoxia-api
+```
+
+---
+
+## 📊 监控和日志
+
+### 日志管理
+
+```bash
+# 实时查看日志
+docker-compose logs -f --tail=100 api
+
+# 日志轮转（在 docker-compose.yml 中配置）
+logging:
+  driver: "json-file"
+  options:
+    max-size: "10m"
+    max-file: "3"
+```
+
+### 资源监控
+
+```bash
+# 查看资源使用
+docker stats
+
+# 查看容器详情
+docker inspect xiaoxia-api
+```
+
+---
+
+## 🔒 安全建议
+
+1. **修改默认密码**
+   - PostgreSQL 密码
+   - JWT Secret Key
+
+2. **限制端口暴露**
+   - 只暴露必要的端口
+   - 使用防火墙规则
+
+3. **定期备份**
+   - 数据库自动备份
+   - 代码版本控制
+
+4. **更新依赖**
+   - 定期更新 Docker 镜像
+   - 更新 Python 依赖包
+
+---
+
+## 🐛 故障排查
+
+### API 启动失败
+
+```bash
+# 查看详细日志
+docker-compose logs api
+
+# 检查数据库连接
+docker-compose exec api python -c "import psycopg2; psycopg2.connect('$DATABASE_URL')"
+```
+
+### 数据库连接失败
+
+```bash
+# 检查 PostgreSQL 状态
+docker-compose ps postgres
+
+# 测试连接
+docker-compose exec postgres psql -U xiaoxia_user -c "SELECT 1"
+```
+
+### 性能问题
+
+```bash
+# 增加 worker 数量
+CMD ["uvicorn", "apps.api.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "4"]
+
+# 启用 Gunicorn（更适合生产）
+CMD ["gunicorn", "apps.api.main:app", "--workers", "4", "--worker-class", "uvicorn.workers.UvicornWorker", "--bind", "0.0.0.0:8000"]
+```
+
+---
+
+**支持联系:** xiaoxia@example.com