diff --git a/scripts/ci/step_frontend_install.sh b/scripts/ci/step_frontend_install.sh
index c451eab75..624dd7b8c 100755
--- a/scripts/ci/step_frontend_install.sh
+++ b/scripts/ci/step_frontend_install.sh
@@ -1,24 +1,25 @@
 #!/bin/sh
 # CI 公共步骤：前端依赖安装（在 docker node 容器中运行）
-# 用法：step_frontend_install.sh [模式]
-#   模式: full (默认) - 完整安装所有依赖
-#        vitest       - 同full（保持接口兼容）
+# 优化：增加国内npm镜像源，加重试间隔
 set -eu
 
 MODE="${1:-full}"
 
 echo "=== 前端依赖安装开始 (模式: $MODE) ==="
 
-# npm ci 带重试（网络不稳定时自动重试）
+# npm国内镜像源（加速下载，减少网络失败）
+NPM_REGISTRY="https://registry.npmmirror.com"
+
 for i in 1 2 3; do
+  echo "npm ci 尝试 $i/3 (镜像: $NPM_REGISTRY)"
   docker run --rm \
     -v "$PWD:/workspace" \
     -w /workspace/apps/web \
     docker.m.daocloud.io/library/node:20 \
-    sh -lc "npm ci --no-audit --no-fund" && break
+    sh -lc "npm config set registry $NPM_REGISTRY && npm ci --no-audit --no-fund" && break
   echo "npm ci 失败，重试 $i/3..."
   [ $i -eq 3 ] && exit 1
-  sleep 5
+  sleep 10
 done
 
 echo "=== 前端依赖安装完成 ==="