diff --git a/backend/mpc-system/services/account/Dockerfile b/backend/mpc-system/services/account/Dockerfile
index 9706adab..f90d2d4d 100644
--- a/backend/mpc-system/services/account/Dockerfile
+++ b/backend/mpc-system/services/account/Dockerfile
@@ -1,6 +1,9 @@
 # Build stage
 FROM golang:1.21-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
+
 RUN apk add --no-cache git ca-certificates
 
 # Set Go proxy for China
@@ -23,6 +26,9 @@ RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
 # Final stage
 FROM alpine:3.18
 
+# Use Aliyun mirror for Alpine packages (China acceleration)
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
+
 RUN apk --no-cache add ca-certificates curl
 RUN adduser -D -s /bin/sh mpc
 
diff --git a/backend/mpc-system/services/message-router/Dockerfile b/backend/mpc-system/services/message-router/Dockerfile
index 597c9d19..2ab5be2b 100644
--- a/backend/mpc-system/services/message-router/Dockerfile
+++ b/backend/mpc-system/services/message-router/Dockerfile
@@ -1,6 +1,9 @@
 # Build stage
 FROM golang:1.21-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
+
 RUN apk add --no-cache git ca-certificates
 
 # Set Go proxy for China
@@ -23,6 +26,9 @@ RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
 # Final stage
 FROM alpine:3.18
 
+# Use Aliyun mirror for Alpine packages (China acceleration)
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
+
 RUN apk --no-cache add ca-certificates curl
 RUN adduser -D -s /bin/sh mpc
 
diff --git a/backend/mpc-system/services/server-party/Dockerfile b/backend/mpc-system/services/server-party/Dockerfile
index 44439963..c2b2a5f0 100644
--- a/backend/mpc-system/services/server-party/Dockerfile
+++ b/backend/mpc-system/services/server-party/Dockerfile
@@ -1,6 +1,9 @@
 # Build stage
 FROM golang:1.21-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
+
 RUN apk add --no-cache git ca-certificates
 
 # Set Go proxy for China
@@ -23,6 +26,9 @@ RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
 # Final stage
 FROM alpine:3.18
 
+# Use Aliyun mirror for Alpine packages (China acceleration)
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
+
 RUN apk --no-cache add ca-certificates curl
 RUN adduser -D -s /bin/sh mpc
 
diff --git a/backend/mpc-system/services/session-coordinator/Dockerfile b/backend/mpc-system/services/session-coordinator/Dockerfile
index 6e15cce6..d8c17735 100644
--- a/backend/mpc-system/services/session-coordinator/Dockerfile
+++ b/backend/mpc-system/services/session-coordinator/Dockerfile
@@ -1,6 +1,9 @@
 # Build stage
 FROM golang:1.21-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
+
 # Install dependencies
 RUN apk add --no-cache git ca-certificates
 
@@ -30,6 +33,9 @@ RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
 # Final stage
 FROM alpine:3.18
 
+# Use Aliyun mirror for Alpine packages (China acceleration)
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
+
 # Install ca-certificates and curl for HTTPS and health check
 RUN apk --no-cache add ca-certificates curl