diff --git a/install.sh b/install.sh
index 2c50c4a..f69a370 100644
--- a/install.sh
+++ b/install.sh
@@ -1081,14 +1081,52 @@ install_backend_dependencies() {
 
     cd "${PROJECT_DIR}/backend"
 
+    # 确保Python可用（node-gyp需要）
+    if ! command -v python &> /dev/null; then
+        if command -v python3 &> /dev/null; then
+            # 创建python软链接指向python3
+            if [[ "$OS" == "ubuntu" ]] || [[ "$OS" == "debian" ]]; then
+                ln -sf /usr/bin/python3 /usr/bin/python || true
+            else
+                # CentOS/RHEL/其他系统
+                alternatives --install /usr/bin/python python /usr/bin/python3 1 &> /dev/null || \
+                ln -sf /usr/bin/python3 /usr/bin/python || true
+            fi
+            print_info "已配置Python环境（python -> python3）"
+        else
+            print_warning "未找到Python，某些依赖可能需要手动处理"
+        fi
+    fi
+
     # 使用国内镜像加速
     if [[ "$USE_ALIYUN_MIRROR" == "true" ]]; then
         npm config set registry https://registry.npmmirror.com
     fi
 
-    npm install --production
+    # 设置npm使用Python3
+    npm config set python python3
+
+    print_info "正在安装依赖包（包含数据库native模块，可能需要几分钟）..."
+
+    # 安装依赖，捕获错误
+    if npm install --production; then
+        print_success "后端依赖安装完成"
+    else
+        print_error "依赖安装失败"
+        echo ""
+        print_warning "可能的解决方案："
+        echo "  1. 检查网络连接"
+        echo "  2. 手动执行: cd ${PROJECT_DIR}/backend && npm install --production"
+        echo "  3. 查看详细错误日志: ~/.npm/_logs/"
+        echo ""
+        
+        # 询问是否继续
+        read -p "是否忽略错误继续安装？(y/n): " continue_install < /dev/tty
+        if [[ "$continue_install" != "y" ]] && [[ "$continue_install" != "Y" ]]; then
+            exit 1
+        fi
+    fi
 
-    print_success "后端依赖安装完成"
     echo ""
 }
 
@@ -1965,6 +2003,19 @@ update_install_dependencies() {
 
     cd "${PROJECT_DIR}/backend"
 
+    # 确保Python可用（node-gyp需要）
+    if ! command -v python &> /dev/null; then
+        if command -v python3 &> /dev/null; then
+            if [[ "$OS" == "ubuntu" ]] || [[ "$OS" == "debian" ]]; then
+                ln -sf /usr/bin/python3 /usr/bin/python || true
+            else
+                alternatives --install /usr/bin/python python /usr/bin/python3 1 &> /dev/null || \
+                ln -sf /usr/bin/python3 /usr/bin/python || true
+            fi
+            print_info "已配置Python环境"
+        fi
+    fi
+
     # 使用国内镜像加速（如果之前选择了）
     if command -v npm &> /dev/null; then
         current_registry=$(npm config get registry)
@@ -1973,18 +2024,26 @@ update_install_dependencies() {
         fi
     fi
 
+    # 设置npm使用Python3
+    npm config set python python3
+
     # 清理旧的node_modules
     if [[ -d "node_modules" ]]; then
         print_info "清理旧依赖..."
         rm -rf node_modules package-lock.json
     fi
 
-    npm install --production
+    print_info "正在重新安装依赖（可能需要几分钟）..."
+
+    if npm install --production; then
+        print_success "依赖更新完成"
+    else
+        print_error "依赖更新失败"
+        print_warning "请检查错误日志: ~/.npm/_logs/"
+    fi
 
-    print_success "依赖更新完成"
     echo ""
 }
-
 update_migrate_database() {
     print_step "迁移数据库配置..."