diff --git a/backend/services/mining-admin-service/Dockerfile b/backend/services/mining-admin-service/Dockerfile
index 81971c08..3398fb71 100644
--- a/backend/services/mining-admin-service/Dockerfile
+++ b/backend/services/mining-admin-service/Dockerfile
@@ -35,8 +35,8 @@ RUN addgroup --system --gid 1001 nodejs && \
 # 安装运行时依赖和编译工具
 RUN apk add --no-cache curl tzdata openssl python3 make g++
 
-# 创建 app 目录并设置所有权
-RUN mkdir -p /app && chown nestjs:nodejs /app
+# 创建 app 目录和 uploads 目录并设置所有权
+RUN mkdir -p /app/uploads && chown -R nestjs:nodejs /app
 WORKDIR /app
 
 # 切换到非 root 用户