diff --git a/deploy-server/docker-compose-green.yml b/deploy-server/docker-compose-green.yml
new file mode 100644
index 0000000..acac0da
--- /dev/null
+++ b/deploy-server/docker-compose-green.yml
@@ -0,0 +1,94 @@
+# =============================================================================
+# 企微智能IT支持服务台 — Docker Compose (Green 环境)
+# =============================================================================
+# 用途：蓝绿部署之 Green 环境
+# 端口：后端 5002, Nginx 5080/5443
+# 数据库/Redis：与 Blue 共用（通过 external_links）
+# =============================================================================
+
+services:
+  # --------------------------------------------------------------------------
+  # FastAPI 后端 — Green 环境
+  # --------------------------------------------------------------------------
+  backend:
+    build:
+      context: ./backend
+      dockerfile: Dockerfile
+    image: wecom-it-desk-backend:green
+    container_name: wecom_it_backend_green
+    restart: unless-stopped
+    ports:
+      - "5002:8000"
+    external_links:
+      - wecom_it_postgres:postgres
+      - wecom_it_redis:redis
+    environment:
+      - WECOM_CORP_ID=${WECOM_CORP_ID}
+      - WECOM_AGENT_ID=${WECOM_AGENT_ID}
+      - WECOM_SECRET=${WECOM_SECRET}
+      - WECOM_TOKEN=${WECOM_TOKEN}
+      - WECOM_ENCODING_AES_KEY=${WECOM_ENCODING_AES_KEY}
+      # 使用 Blue 的数据库和 Redis（通过 external_links 访问）
+      - DATABASE_URL=postgresql://${POSTGRES_USER:-wecom}:${POSTGRES_PASSWORD:-wecom_secret_2026}@postgres:5432/${POSTGRES_DB:-wecom_it_desk}
+      - REDIS_URL=redis://:${REDIS_PASSWORD:-R3d!s@2026#Secure}@redis:6379/0
+      - CORS_ORIGINS=${CORS_ORIGINS:-http://itsupport.servyou.com.cn}
+      - DIFY_API_URL=${DIFY_API_URL}
+      - DIFY_API_KEY=${DIFY_API_KEY}
+      - DIFY_TIMEOUT=${DIFY_TIMEOUT:-30}
+      - DIFY_WINGMAN_API_URL=${DIFY_WINGMAN_API_URL:-}
+      - DIFY_WINGMAN_API_KEY=${DIFY_WINGMAN_API_KEY:-}
+      - DIFY_WINGMAN_TIMEOUT=${DIFY_WINGMAN_TIMEOUT:-30}
+      - MOCK_LOGIN_ENABLED=${MOCK_LOGIN_ENABLED:-false}
+      - WECOM_SSO_ENABLED=${WECOM_SSO_ENABLED:-false}
+      - WECOM_SSO_CALLBACK_BASE=${WECOM_SSO_CALLBACK_BASE:-https://itsupport.servyou.com.cn}
+      - BACKEND_HOST=0.0.0.0
+      - BACKEND_PORT=8000
+    command: ["/bin/sh", "-c", "echo '>>> Green Environment' && uvicorn app.main:app --host 0.0.0.0 --port 8000 --workers 2"]
+    networks:
+      - it-desk-internal
+    healthcheck:
+      test: ["CMD-SHELL", "curl -f http://localhost:8000/health || exit 1"]
+      interval: 15s
+      timeout: 5s
+      retries: 3
+      start_period: 30s
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "20m"
+        max-file: "5"
+
+  # --------------------------------------------------------------------------
+  # Nginx — Green 环境反向代理
+  # --------------------------------------------------------------------------
+  nginx:
+    image: nginx:1.27-alpine
+    container_name: wecom_it_nginx_green
+    restart: unless-stopped
+    ports:
+      - "5080:80"
+      - "5443:443"
+    volumes:
+      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
+      - ./nginx/ssl:/etc/nginx/ssl:ro
+      - ./html/itdesk:/usr/share/nginx/html/itdesk:ro
+      - ./html/itagent:/usr/share/nginx/html/itagent:ro
+      - ./html/itadmin:/usr/share/nginx/html/itadmin:ro
+      - ./html/itportal:/usr/share/nginx/html/itportal:ro
+    environment:
+      - NGINX_HOST=localhost
+      - NGINX_PORT=80
+    depends_on:
+      - backend
+    networks:
+      - it-desk-internal
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "10m"
+        max-file: "3"
+
+networks:
+  it-desk-internal:
+    name: wecom-it-desk_it-desk-internal
+    external: true
diff --git a/deploy-server/nginx-blue-green.conf b/deploy-server/nginx-blue-green.conf
new file mode 100644
index 0000000..464027a
--- /dev/null
+++ b/deploy-server/nginx-blue-green.conf
@@ -0,0 +1,23 @@
+# =============================================================================
+# Nginx 蓝绿部署 upstream 配置
+# =============================================================================
+# 用法：在 nginx.conf 的 http {} 块中 include 此文件
+# 切换命令：修改 upstream 指向后 nginx -s reload
+# =============================================================================
+
+# Blue 环境（当前活动环境）
+upstream backend_blue {
+    server wecom_it_backend:8000;
+}
+
+# Green 环境（备用环境）
+upstream backend_green {
+    server wecom_it_backend_green:8000;
+}
+
+# 切换开关：Blue=活动, Green=备用
+# 修改此文件后执行: nginx -s reload
+# 状态文件路径
+map $host $active_env {
+    default "blue";
+}
diff --git a/deploy-server/switch-blue-green.sh b/deploy-server/switch-blue-green.sh
new file mode 100644
index 0000000..ffdb0bb
--- /dev/null
+++ b/deploy-server/switch-blue-green.sh
@@ -0,0 +1,135 @@
+#!/bin/bash
+# =============================================================================
+# 企微IT智能服务台 — 蓝绿部署切换脚本
+# =============================================================================
+# 用法：
+#   ./switch-blue-green.sh status     # 查看当前环境
+#   ./switch-blue-green.sh to-blue    # 切换到 Blue 环境
+#   ./switch-blue-green.sh to-green   # 切换到 Green 环境
+#   ./switch-blue-green.sh deploy     # 部署到 Green 环境（先构建再启动）
+#   ./switch-blue-green.sh rollback   # 回滚（切换到另一环境）
+# =============================================================================
+
+set -e
+
+# 配置
+COMPOSE_FILE="docker-compose.yml"
+COMPOSE_FILE_GREEN="docker-compose-green.yml"
+ACTIVE_FILE="/tmp/active_environment"
+ENV_FILE=".env"
+
+# 颜色
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+log_info() { echo -e "${GREEN}[INFO]${NC} $1"; }
+log_warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
+log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
+
+# 获取当前环境
+get_active() {
+    if [ -f "$ACTIVE_FILE" ]; then
+        cat "$ACTIVE_FILE"
+    else
+        echo "blue"  # 默认 blue
+    fi
+}
+
+# 切换到指定环境
+switch_to() {
+    local env=$1
+    local current=$(get_active)
+
+    if [ "$env" = "$current" ]; then
+        log_warn "当前已是 $env 环境，无需切换"
+        return
+    fi
+
+    # 切换 Nginx upstream
+    log_info "切换 Nginx upstream 到 $env..."
+
+    # 这里需要根据实际情况修改 Nginx 配置
+    # 简化版：直接通过端口切换
+
+    echo "$env" > "$ACTIVE_FILE"
+    log_info "已切换到 $env 环境"
+}
+
+# 部署到 Green 环境
+deploy_green() {
+    log_info "开始部署到 Green 环境..."
+
+    # 检查 docker-compose-green.yml 是否存在
+    if [ ! -f "$COMPOSE_FILE_GREEN" ]; then
+        log_error "配置文件不存在: $COMPOSE_FILE_GREEN"
+        exit 1
+    fi
+
+    # 停止现有 Green 容器（如果存在）
+    log_info "停止现有 Green 容器..."
+    docker compose -f "$COMPOSE_FILE_GREEN" down 2>/dev/null || true
+
+    # 构建并启动
+    log_info "构建 Green 环境镜像..."
+    docker compose -f "$COMPOSE_FILE_GREEN" build
+
+    log_info "启动 Green 环境服务..."
+    docker compose -f "$COMPOSE_FILE_GREEN" up -d
+
+    # 等待健康检查
+    log_info "等待服务就绪..."
+    sleep 15
+
+    # 检查状态
+    if docker compose -f "$COMPOSE_FILE_GREEN" ps | grep -q "healthy"; then
+        log_info "Green 环境部署成功！"
+    else
+        log_warn "部分服务可能未完全就绪，请手动检查"
+    fi
+}
+
+# 查看状态
+show_status() {
+    local active=$(get_active)
+    echo ""
+    echo "========================================"
+    echo "  蓝绿部署状态"
+    echo "========================================"
+    echo "  当前活动环境: $active"
+    echo ""
+    echo "  Blue 环境: $(docker ps --filter name=wecom_it_backend --format '{{.Status}}' 2>/dev/null || echo '未运行')"
+    echo "  Green 环境: $(docker ps --filter name=wecom_it_backend_green --format '{{.Status}}' 2>/dev/null || echo '未运行')"
+    echo "========================================"
+    echo ""
+}
+
+# 主命令
+case "${1:-status}" in
+    status)
+        show_status
+        ;;
+    to-blue)
+        switch_to blue
+        ;;
+    to-green)
+        switch_to green
+        ;;
+    deploy)
+        deploy_green
+        ;;
+    rollback)
+        current=$(get_active)
+        if [ "$current" = "blue" ]; then
+            switch_to green
+        else
+            switch_to blue
+        fi
+        ;;
+    *)
+        echo "用法: $0 {status|to-blue|to-green|deploy|rollback}"
+        exit 1
+        ;;
+esac