diff --git a/docker_env/django/Dockerfile b/docker_env/django/Dockerfile
index ac3a91e..dfa74e7 100644
--- a/docker_env/django/Dockerfile
+++ b/docker_env/django/Dockerfile
@@ -1,45 +1,36 @@
-# 第一阶段：构建依赖
+# 第一阶段：构建
 FROM docker.1ms.run/python:3.10-slim as builder
 
 WORKDIR /backend
 
-# 安装构建依赖
+# 安装系统依赖（合并为一个RUN减少层数）
 RUN apt-get update && apt-get install -y \
-    bash \
-    git \
-    curl \
-    gnupg \
-    ca-certificates \
-    libjpeg-dev \
-    libmariadb-dev-compat \
-    default-libmysqlclient-dev \
-    build-essential \
-    libffi-dev \
-    libssl-dev \
-    zlib1g-dev \
-    libbz2-dev \
-    libpcre2-dev \
-    libncurses5-dev \
-    libreadline-dev \
-    tk-dev \
-    libpq-dev \
-    unixodbc-dev \
-    && rm -rf /var/lib/apt/lists/*
-
-# 添加微软源
-RUN curl -fsSL https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o /etc/apt/trusted.gpg.d/microsoft.gpg \
+    bash git curl gnupg ca-certificates \
+    libjpeg-dev libmariadb-dev-compat default-libmysqlclient-dev \
+    build-essential libffi-dev libssl-dev zlib1g-dev libbz2-dev \
+    libpcre2-dev libncurses5-dev libreadline-dev tk-dev libpq-dev unixodbc-dev \
+    && rm -rf /var/lib/apt/lists/* \
+    && curl -fsSL https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o /etc/apt/trusted.gpg.d/microsoft.gpg \
     && echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-focal-prod focal main" > /etc/apt/sources.list.d/mssql-release.list \
     && apt-get update \
     && ACCEPT_EULA=Y apt-get install -y msodbcsql17 \
     && rm -rf /var/lib/apt/lists/*
 
-COPY ./backend/ .
-RUN ls ./conf/
-RUN awk 'BEGIN { cmd="cp -i ./conf/env.example.py   ./conf/env.py "; print "n" |cmd; }'
-RUN sed -i "s|DATABASE_HOST = '127.0.0.1'|DATABASE_HOST = '177.10.0.1'|g" ./conf/env.py
-RUN sed -i "s|REDIS_HOST = '127.0.0.1'|REDIS_HOST = '177.10.0.1'|g" ./conf/env.py
+# 先复制依赖文件，利用缓存
+COPY ./backend/requirements.txt .
+
+# 安装 Python 依赖（带缓存加速）
 RUN pip install --no-cache-dir -i https://pypi.tuna.tsinghua.edu.cn/simple/ -r requirements.txt
 
+# 复制剩余代码
+COPY ./backend/ .
+
+# 配置
+RUN ls ./conf/ \
+    && awk 'BEGIN { cmd="cp -i ./conf/env.example.py ./conf/env.py "; print "n" |cmd; }' \
+    && sed -i "s|DATABASE_HOST = '127.0.0.1'|DATABASE_HOST = '177.10.0.1'|g" ./conf/env.py \
+    && sed -i "s|REDIS_HOST = '127.0.0.1'|REDIS_HOST = '177.10.0.1'|g" ./conf/env.py
+
 # 第二阶段：运行时镜像
 FROM docker.1ms.run/python:3.10-slim
 
diff --git a/docker_env/web/Dockerfile b/docker_env/web/Dockerfile
index cdb646d..16a6dcc 100644
--- a/docker_env/web/Dockerfile
+++ b/docker_env/web/Dockerfile
@@ -1,11 +1,18 @@
 # 第一阶段：构建
 FROM docker.1ms.run/node:20-alpine as builder
 
-WORKDIR /web/
-COPY web/. .
+WORKDIR /web
 
-# 使用 npmmirror 加速 yarn install
+# 先复制 package.json 和 yarn.lock
+COPY web/package.json web/yarn.lock* ./
+
+# 安装依赖（利用缓存）
 RUN yarn install --registry=https://registry.npmmirror.com
+
+# 复制源代码
+COPY web/ .
+
+# 构建
 RUN yarn build
 
 # 第二阶段：Nginx 运行时