diff --git a/backend/docker-compose.prod.yml b/backend/docker-compose.prod.yml
index 4376bc5..eedfeeb 100644
--- a/backend/docker-compose.prod.yml
+++ b/backend/docker-compose.prod.yml
@@ -7,9 +7,7 @@
 services:
   # 后端API服务 (仅API服务，无数据库)
   api:
-    build:
-      context: .
-      dockerfile: Dockerfile
+    image: crpi-b4fqtfbvv583enk2.cn-shanghai.personal.cr.aliyuncs.com/photography-backend/photography:latest
     container_name: photography-api
     environment:
       # 数据库配置 (连接现有服务)
diff --git a/backend/docker-compose.yml b/backend/docker-compose.yml
index c70f044..eedfeeb 100644
--- a/backend/docker-compose.yml
+++ b/backend/docker-compose.yml
@@ -1,104 +1,53 @@
-# Photography Portfolio Backend - Docker Compose
-# 本地开发和测试环境配置
+# Photography Portfolio Backend - Production Docker Compose
+# 生产环境配置 - 使用现有 PostgreSQL 和 Redis 服务
 
 # version 字段已废弃，不再需要使用
 # version: '3.8'
 
 services:
-  # PostgreSQL 数据库
-  db:
-    image: postgres:16-alpine
-    container_name: photography-db
-    environment:
-      POSTGRES_DB: photography
-      POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: postgres123
-      POSTGRES_INITDB_ARGS: "--encoding=UTF-8 --lc-collate=C --lc-ctype=C"
-    ports:
-      - "5432:5432"
-    volumes:
-      - postgres_data:/var/lib/postgresql/data
-      - ./configs/init-db.sql:/docker-entrypoint-initdb.d/init-db.sql:ro
-    networks:
-      - photography-network
-    restart: unless-stopped
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U postgres -d photography"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-
-  # Redis 缓存
-  redis:
-    image: redis:7-alpine
-    container_name: photography-redis
-    ports:
-      - "6379:6379"
-    volumes:
-      - redis_data:/data
-      - ./configs/redis.conf:/usr/local/etc/redis/redis.conf:ro
-    command: redis-server /usr/local/etc/redis/redis.conf
-    networks:
-      - photography-network
-    restart: unless-stopped
-    healthcheck:
-      test: ["CMD", "redis-cli", "ping"]
-      interval: 10s
-      timeout: 3s
-      retries: 5
-
-  # 后端API服务
+  # 后端API服务 (仅API服务，无数据库)
   api:
-    build:
-      context: .
-      dockerfile: Dockerfile
+    image: crpi-b4fqtfbvv583enk2.cn-shanghai.personal.cr.aliyuncs.com/photography-backend/photography:latest
     container_name: photography-api
     environment:
-      # 数据库配置
-      DB_HOST: db
-      DB_PORT: 5432
-      DB_NAME: photography
-      DB_USER: postgres
-      DB_PASSWORD: postgres123
-      DB_SSL_MODE: disable
+      # 数据库配置 (连接现有服务)
+      DB_HOST: ${DB_HOST:-redis_cache}
+      DB_PORT: ${DB_PORT:-5432}
+      DB_NAME: ${DB_NAME:-photography}
+      DB_USER: ${DB_USER:-postgres}
+      DB_PASSWORD: ${DB_PASSWORD}
+      DB_SSL_MODE: ${DB_SSL_MODE:-disable}
       
-      # Redis配置
-      REDIS_HOST: redis
-      REDIS_PORT: 6379
-      REDIS_PASSWORD: ""
-      REDIS_DB: 0
+      # Redis配置 (连接现有服务)
+      REDIS_HOST: ${REDIS_HOST:-localhost}
+      REDIS_PORT: ${REDIS_PORT:-6379}
+      REDIS_PASSWORD: ${REDIS_PASSWORD:-}
+      REDIS_DB: ${REDIS_DB:-0}
       
       # JWT配置
-      JWT_SECRET: your-super-secret-jwt-key-change-in-production
-      JWT_EXPIRE: 24h
+      JWT_SECRET: ${JWT_SECRET}
+      JWT_EXPIRE: ${JWT_EXPIRE:-24h}
       
       # 服务配置
-      APP_ENV: development
-      APP_PORT: 8080
-      APP_HOST: 0.0.0.0
+      APP_ENV: ${APP_ENV:-production}
+      APP_PORT: ${APP_PORT:-8080}
+      APP_HOST: ${APP_HOST:-0.0.0.0}
       
       # CORS配置
-      CORS_ORIGINS: "http://localhost:3000,http://localhost:3001,http://localhost:5173"
+      CORS_ORIGINS: ${CORS_ORIGINS:-https://photography.iriver.top}
       
       # 文件上传配置
-      UPLOAD_PATH: /app/uploads
-      UPLOAD_MAX_SIZE: 10485760  # 10MB
+      UPLOAD_PATH: ${UPLOAD_PATH:-/app/uploads}
+      UPLOAD_MAX_SIZE: ${UPLOAD_MAX_SIZE:-10485760}
       
       # 日志配置
-      LOG_LEVEL: info
-      LOG_FORMAT: json
+      LOG_LEVEL: ${LOG_LEVEL:-info}
+      LOG_FORMAT: ${LOG_FORMAT:-json}
     ports:
       - "8080:8080"
     volumes:
       - uploads_data:/app/uploads
       - logs_data:/app/logs
-    networks:
-      - photography-network
-    depends_on:
-      db:
-        condition: service_healthy
-      redis:
-        condition: service_healthy
     restart: unless-stopped
     healthcheck:
       test: ["CMD", "/photography-api", "--health-check"]
@@ -114,33 +63,17 @@ services:
       dockerfile: Dockerfile
     container_name: photography-migrate
     environment:
-      DB_HOST: db
-      DB_PORT: 5432
-      DB_NAME: photography
-      DB_USER: postgres
-      DB_PASSWORD: postgres123
-      DB_SSL_MODE: disable
-    networks:
-      - photography-network
-    depends_on:
-      db:
-        condition: service_healthy
+      DB_HOST: ${DB_HOST:-localhost}
+      DB_PORT: ${DB_PORT:-5432}
+      DB_NAME: ${DB_NAME:-photography}
+      DB_USER: ${DB_USER:-postgres}
+      DB_PASSWORD: ${DB_PASSWORD}
+      DB_SSL_MODE: ${DB_SSL_MODE:-disable}
     entrypoint: ["/migrate", "up"]
     restart: "no"
 
 volumes:
-  postgres_data:
-    driver: local
-  redis_data:
-    driver: local
   uploads_data:
     driver: local
   logs_data:
-    driver: local
-
-networks:
-  photography-network:
-    driver: bridge
-    ipam:
-      config:
-        - subnet: 172.20.0.0/16
\ No newline at end of file
+    driver: local
\ No newline at end of file