diff --git a/backend/services/identity-service/Dockerfile b/backend/services/identity-service/Dockerfile
index 02c6ce26..5875576e 100644
--- a/backend/services/identity-service/Dockerfile
+++ b/backend/services/identity-service/Dockerfile
@@ -5,6 +5,12 @@
 # Build stage - use Alpine for smaller build context
 FROM node:20-alpine AS builder
 
+# Use Aliyun mirror for Alpine packages (China acceleration)
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
+
+# Use taobao npm registry (China acceleration)
+RUN npm config set registry https://registry.npmmirror.com
+
 WORKDIR /app
 
 # Copy package files
@@ -35,12 +41,19 @@ FROM node:20-slim
 
 WORKDIR /app
 
+# Use Aliyun mirror for Debian packages (China acceleration)
+RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list.d/debian.sources 2>/dev/null || \
+    sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list 2>/dev/null || true
+
 # Install OpenSSL and curl for health checks
 RUN apt-get update && apt-get install -y --no-install-recommends \
     openssl \
     curl \
     && rm -rf /var/lib/apt/lists/*
 
+# Use taobao npm registry (China acceleration)
+RUN npm config set registry https://registry.npmmirror.com
+
 # Install production dependencies only
 COPY package*.json ./
 RUN npm ci --only=production