diff --git a/install.sh b/install.sh
index 9a0fc1c..638f01d 100644
--- a/install.sh
+++ b/install.sh
@@ -2083,13 +2083,13 @@ main() {
             echo ""
             echo -e "${GREEN}[1]${NC} 安装/部署 玩玩云"
             echo -e "${BLUE}[2]${NC} 更新/升级 玩玩云"
-            echo -e "${RED}[3]${NC} 卸载 玩玩云"
+            echo -e "${YELLOW}[3]${NC} 修复/重新配置 玩玩云"
+            echo -e "${RED}[4]${NC} 卸载 玩玩云"
             echo ""
 
             while true; do
-                read -p "请输入选项 [1-3]: " mode_choice < /dev/tty
+                read -p "请输入选项 [1-4]: " mode_choice < /dev/tty
                 case $mode_choice in
-                    1)
                         print_success "已选择: 安装模式"
                         echo ""
                         break
@@ -2101,6 +2101,12 @@ main() {
                         exit 0
                         ;;
                     3)
+                        print_info "切换到修复模式..."
+                        echo ""
+                        repair_main
+                        exit 0
+                        ;;
+                    4)
                         print_info "切换到卸载模式..."
                         echo ""
                         uninstall_main
@@ -2111,18 +2117,12 @@ main() {
                         ;;
                 esac
             done
-        else
-            # 管道执行时的提示
-            print_info "检测到通过管道执行脚本"
-            print_info "默认进入安装模式"
-            print_warning "如需其他操作，请下载脚本后运行"
-            echo ""
+            echo -e "${YELLOW}提示:${NC}"
             echo -e "${YELLOW}提示:${NC}"
             echo "  安装: wget https://gitee.com/yu-yon/vue-driven-cloud-storage/raw/master/install.sh && bash install.sh"
             echo "  更新: wget https://gitee.com/yu-yon/vue-driven-cloud-storage/raw/master/install.sh && bash install.sh --update"
+            echo "  修复: wget https://gitee.com/yu-yon/vue-driven-cloud-storage/raw/master/install.sh && bash install.sh --repair"
             echo "  卸载: wget https://gitee.com/yu-yon/vue-driven-cloud-storage/raw/master/install.sh && bash install.sh --uninstall"
-            echo ""
-            sleep 2
         fi
     fi
 
@@ -2211,10 +2211,295 @@ uninstall_main() {
 }
 
 # 执行主流程
+
 if [[ "$MODE" == "uninstall" ]]; then
     uninstall_main
 elif [[ "$MODE" == "update" ]]; then
     update_main
+elif [[ "$MODE" == "repair" ]]; then
+    repair_main
 else
     main
 fi
+################################################################################
+################################################################################
+# 修复功能
+################################################################################
+
+print_repair_banner() {
+    echo "║                                                               ║"
+    echo "║                  🔧 玩玩云 修复模式                            ║"
+    echo "║                                                               ║"
+    echo "║                  Repair Mode                                 ║"
+    echo "║                                                               ║"
+    echo "╚═══════════════════════════════════════════════════════════════╝"
+    echo -e "${NC}"
+}
+
+confirm_repair() {
+    print_repair_banner
+
+    echo -e "${YELLOW}"
+    echo "本脚本将执行以下操作:"
+    echo ""
+    echo "【将会重新配置】"
+    echo "  ✓ 重新生成Nginx配置（应用最新配置）"
+    echo "  ✓ 重启后端服务"
+    echo "  ✓ 重载Nginx服务"
+    echo ""
+    echo "【将会保留】"
+    echo "  ✓ 数据库文件（用户数据）"
+    echo "  ✓ 用户上传的文件"
+    echo "  ✓ .env 配置文件"
+    echo "  ✓ SSL证书"
+    echo -e "${NC}"
+    echo ""
+
+    print_info "适用场景: 更新配置、修复nginx配置错误、重新应用设置"
+    echo ""
+
+    read -p "确定要执行修复吗？ (y/n): " confirm < /dev/tty
+
+    if [[ "$confirm" != "y" && "$confirm" != "Y" ]]; then
+        print_info "已取消修复"
+        exit 0
+    fi
+
+    echo ""
+}
+
+repair_check_project() {
+    print_step "检查项目是否已安装..."
+
+    if [[ ! -d "$PROJECT_DIR" ]]; then
+        print_error "项目未安装: $PROJECT_DIR"
+        print_info "请先运行安装命令: bash install.sh"
+        exit 1
+    fi
+
+    if [[ ! -f "${PROJECT_DIR}/backend/server.js" ]]; then
+        print_error "项目目录不完整"
+        exit 1
+    fi
+
+    print_success "项目已安装: $PROJECT_DIR"
+    echo ""
+}
+
+repair_load_existing_config() {
+    print_step "读取现有配置..."
+
+    # 从.env读取端口配置
+    if [[ -f "${PROJECT_DIR}/backend/.env" ]]; then
+        BACKEND_PORT=$(grep "^PORT=" "${PROJECT_DIR}/backend/.env" | cut -d'=' -f2 || echo "40001")
+        print_success "后端端口: $BACKEND_PORT"
+    else
+        print_warning ".env文件不存在，使用默认端口40001"
+        BACKEND_PORT="40001"
+    fi
+
+    # 检查现有nginx配置
+    if [[ -f "/etc/nginx/sites-enabled/${PROJECT_NAME}.conf" ]]; then
+        # 尝试从现有配置读取端口
+        EXISTING_HTTP_PORT=$(grep "listen" "/etc/nginx/sites-enabled/${PROJECT_NAME}.conf" | grep -v "ssl" | head -1 | awk '{print $2}' | tr -d ';' || echo "80")
+        HTTP_PORT=${EXISTING_HTTP_PORT:-80}
+        
+        # 检查是否有HTTPS配置
+        if grep -q "listen.*ssl" "/etc/nginx/sites-enabled/${PROJECT_NAME}.conf"; then
+            EXISTING_HTTPS_PORT=$(grep "listen.*ssl" "/etc/nginx/sites-enabled/${PROJECT_NAME}.conf" | head -1 | awk '{print $2}' | tr -d ';' || echo "443")
+            HTTPS_PORT=${EXISTING_HTTPS_PORT:-443}
+            SSL_METHOD="existing"
+            print_success "检测到HTTPS配置，端口: $HTTPS_PORT"
+        else
+            SSL_METHOD="8"
+            print_info "未检测到HTTPS配置"
+        fi
+        
+        # 检查是否有域名
+        SERVER_NAME=$(grep "server_name" "/etc/nginx/sites-enabled/${PROJECT_NAME}.conf" | head -1 | awk '{print $2}' | tr -d ';' || echo "_")
+        if [[ "$SERVER_NAME" != "_" ]] && [[ "$SERVER_NAME" != "localhost" ]]; then
+            DOMAIN="$SERVER_NAME"
+            USE_DOMAIN=true
+            print_success "检测到域名: $DOMAIN"
+        else
+            USE_DOMAIN=false
+            print_info "使用IP模式"
+        fi
+        
+        print_success "HTTP端口: $HTTP_PORT"
+    else
+        print_warning "未找到现有nginx配置，将使用默认配置"
+        HTTP_PORT="80"
+        HTTPS_PORT="443"
+        SSL_METHOD="8"
+        USE_DOMAIN=false
+    fi
+
+    echo ""
+}
+
+repair_regenerate_nginx_config() {
+    print_step "重新生成Nginx配置..."
+
+    # 备份现有配置
+    if [[ -f "/etc/nginx/sites-enabled/${PROJECT_NAME}.conf" ]]; then
+        cp "/etc/nginx/sites-enabled/${PROJECT_NAME}.conf" "/etc/nginx/sites-enabled/${PROJECT_NAME}.conf.backup.$(date +%Y%m%d%H%M%S)"
+        print_success "已备份现有配置"
+    fi
+
+    # 调用现有的configure_nginx函数
+    configure_nginx
+
+    print_success "Nginx配置已重新生成"
+    echo ""
+}
+
+repair_restart_services() {
+    print_step "重启服务..."
+
+    # 重启后端
+    if command -v pm2 &> /dev/null; then
+        if pm2 list | grep -q "${PROJECT_NAME}-backend"; then
+            pm2 restart ${PROJECT_NAME}-backend
+            print_success "后端服务已重启"
+        else
+            print_warning "后端服务未运行，尝试启动..."
+            cd "${PROJECT_DIR}/backend"
+            pm2 start server.js --name ${PROJECT_NAME}-backend
+            pm2 save
+            print_success "后端服务已启动"
+        fi
+    fi
+
+    # 重载Nginx
+    if systemctl is-active --quiet nginx; then
+        systemctl reload nginx
+        print_success "Nginx已重载"
+    else
+        print_warning "Nginx未运行，尝试启动..."
+        systemctl start nginx
+        print_success "Nginx已启动"
+    fi
+
+    echo ""
+}
+
+repair_verify_services() {
+    print_step "验证服务状态..."
+
+    # 检查后端
+    if pm2 status | grep -q "${PROJECT_NAME}-backend.*online"; then
+        print_success "后端服务运行正常"
+    else
+        print_error "后端服务状态异常"
+        print_info "查看日志: pm2 logs ${PROJECT_NAME}-backend"
+    fi
+
+    # 检查Nginx
+    if systemctl is-active --quiet nginx; then
+        print_success "Nginx服务运行正常"
+    else
+        print_error "Nginx服务异常"
+    fi
+
+    # 检查端口
+    if netstat -tunlp 2>/dev/null | grep -q ":${BACKEND_PORT}" || ss -tunlp 2>/dev/null | grep -q ":${BACKEND_PORT}"; then
+        print_success "后端端口监听正常 (${BACKEND_PORT})"
+    else
+        print_warning "后端端口监听异常"
+    fi
+
+    echo ""
+}
+
+print_repair_completion() {
+    clear
+    echo -e "${GREEN}"
+    echo "╔═══════════════════════════════════════════════════════════════╗"
+    echo "║                                                               ║"
+    echo "║                    ✓ 修复完成！                               ║"
+    echo "║                                                               ║"
+    echo "╚═══════════════════════════════════════════════════════════════╝"
+    echo -e "${NC}"
+    echo ""
+
+    echo -e "${CYAN}修复内容:${NC}"
+    echo "  ✓ Nginx配置已更新到最新版本"
+    echo "  ✓ 服务已重启"
+    echo ""
+
+    echo -e "${CYAN}保留的数据:${NC}"
+    echo "  ✓ 数据库（用户、分享链接等）"
+    echo "  ✓ 用户文件（storage目录）"
+    echo "  ✓ 配置文件（.env）"
+    echo ""
+
+    # 显示访问地址
+    if [[ "$USE_DOMAIN" == "true" ]]; then
+        if [[ "$SSL_METHOD" == "8" ]] || [[ "$SSL_METHOD" == "" ]]; then
+            if [[ "$HTTP_PORT" == "80" ]]; then
+                echo -e "${CYAN}访问地址:${NC} http://${DOMAIN}"
+            else
+                echo -e "${CYAN}访问地址:${NC} http://${DOMAIN}:${HTTP_PORT}"
+            fi
+        else
+            if [[ "$HTTPS_PORT" == "443" ]]; then
+                echo -e "${CYAN}访问地址:${NC} https://${DOMAIN}"
+            else
+                echo -e "${CYAN}访问地址:${NC} https://${DOMAIN}:${HTTPS_PORT}"
+            fi
+        fi
+    else
+        PUBLIC_IP=$(curl -s ifconfig.me || curl -s icanhazip.com || echo "服务器IP")
+        if [[ "$HTTP_PORT" == "80" ]]; then
+            echo -e "${CYAN}访问地址:${NC} http://${PUBLIC_IP}"
+        else
+            echo -e "${CYAN}访问地址:${NC} http://${PUBLIC_IP}:${HTTP_PORT}"
+        fi
+    fi
+    echo ""
+
+    echo -e "${YELLOW}常用命令:${NC}"
+    echo "  查看服务状态: pm2 status"
+    echo "  查看日志: pm2 logs ${PROJECT_NAME}-backend"
+    echo "  重启服务: pm2 restart ${PROJECT_NAME}-backend"
+    echo ""
+
+    echo -e "${GREEN}修复完成，请测试功能是否正常！${NC}"
+    echo ""
+}
+
+repair_main() {
+    # 检查root权限
+    check_root
+
+    # 检测操作系统
+    detect_os
+
+    # 确认修复
+    confirm_repair
+
+    # 检查项目
+    repair_check_project
+
+    # 读取现有配置
+    repair_load_existing_config
+
+    # 重新生成nginx配置
+    repair_regenerate_nginx_config
+
+    # 重启服务
+    repair_restart_services
+
+    # 验证服务
+    repair_verify_services
+
+    # 健康检查
+    if ! health_check; then
+        print_warning "部分健康检查未通过，请查看日志"
+        print_info "查看日志: pm2 logs ${PROJECT_NAME}-backend"
+    fi
+
+    # 完成提示
+    print_repair_completion
+}