diff --git a/README.md b/README.md
index db86574..777f18b 100644
--- a/README.md
+++ b/README.md
@@ -94,4 +94,5 @@ docker run --rm -it \
 - `GIT_REPO_URL`：容器启动时拉取代码的仓库地址
 - `GIT_BRANCH`：拉取分支（默认 `main`）
 - `WORKTREE_DIR`：容器内代码目录（默认 `/app/runtime`）
+- `NPM_REGISTRY`：前端依赖安装镜像源（默认 `https://registry.npmmirror.com`）
 
diff --git a/docker/start.sh b/docker/start.sh
index 86a5d2a..bb18f06 100644
--- a/docker/start.sh
+++ b/docker/start.sh
@@ -6,6 +6,7 @@ GIT_BRANCH="${GIT_BRANCH:-main}"
 WORKTREE_DIR="${WORKTREE_DIR:-/app/runtime}"
 BACKEND_PORT="${FLASK_RUN_PORT:-14620}"
 FRONTEND_PORT="${FRONTEND_PORT:-14621}"
+NPM_REGISTRY="${NPM_REGISTRY:-https://registry.npmmirror.com}"
 
 echo "[start] syncing source from ${GIT_REPO_URL} (${GIT_BRANCH})"
 if [ ! -d "${WORKTREE_DIR}/.git" ]; then
@@ -26,7 +27,10 @@ fi
 
 echo "[start] installing frontend dependencies and building"
 cd "${WORKTREE_DIR}/frontend"
-npm install
+echo "[start] npm registry: ${NPM_REGISTRY}"
+npm config set registry "${NPM_REGISTRY}"
+npm ci --no-audit --no-fund
+echo "[start] building frontend assets"
 npm run build
 
 echo "[start] launching backend:${BACKEND_PORT} and frontend:${FRONTEND_PORT}"