diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 000000000..7a12ed4f8
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,69 @@
+# CI 流程 - Pull Request 自动检测
+# 当有 PR 提交或推送到 main 分支时自动运行
+
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  # ==================== 核心检查（必须通过）====================
+  check:
+    name: ✅ 代码检查
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: 📥 检出代码
+        uses: actions/checkout@v4
+      
+      - name: 🐍 设置 Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+          cache: 'pip'
+      
+      - name: 📦 安装依赖
+        run: |
+          pip install --upgrade pip
+          pip install -r requirements.txt
+          pip install flake8
+      
+      - name: 🐍 语法检查
+        run: |
+          python -m py_compile main.py config.py analyzer.py notification.py
+          python -m py_compile storage.py scheduler.py search_service.py
+          python -m py_compile market_analyzer.py stock_analyzer.py
+          python -m py_compile data_provider/*.py
+          echo "✅ Python 语法检查通过"
+      
+      - name: 🔎 静态分析 (严重错误)
+        run: |
+          # 只检查严重错误：语法错误、未定义变量等
+          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+      
+      - name: ✅ 模块导入测试
+        run: |
+          python -c "from config import get_config; print('✅ config')"
+          python -c "from storage import DatabaseManager; print('✅ storage')"
+          python -c "from notification import NotificationService; print('✅ notification')"
+          python -c "from data_provider import DataFetcherManager; print('✅ data_provider')"
+          python -c "from analyzer import GeminiAnalyzer; print('✅ analyzer')"
+          echo "✅ 所有模块导入成功"
+
+  # ==================== Docker 构建测试 ====================
+  docker:
+    name: 🐳 Docker 构建
+    runs-on: ubuntu-latest
+    needs: [check]
+    
+    steps:
+      - name: 📥 检出代码
+        uses: actions/checkout@v4
+      
+      - name: 🐳 构建镜像
+        run: |
+          docker build -t stock-analysis:test .
+          docker run --rm stock-analysis:test python -c "print('✅ Docker OK')"
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f7f38a85a..96858ef1e 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -72,6 +72,36 @@ docs: 更新 README 部署说明
 - 重要逻辑添加注释
 - 新功能需要更新相关文档
 
+### CI 自动检查
+
+提交 PR 后，CI 会自动运行以下检查：
+
+| 检查项 | 说明 | 必须通过 |
+|--------|------|:--------:|
+| 🐍 语法检查 | Python 语法正确性 | ✅ |
+| 📦 依赖安装 | Python 3.10/3.11/3.12 多版本测试 | ✅ |
+| 🐳 Docker 构建 | Docker 镜像能正常构建 | ✅ |
+| 🔍 代码规范 | Black/Flake8/isort 格式检查 | ⚠️ 警告 |
+| 🔒 安全检查 | Bandit/Safety 漏洞扫描 | ⚠️ 警告 |
+| 🧪 单元测试 | pytest 测试（如有） | ✅ |
+
+**本地运行检查：**
+
+```bash
+# 安装检查工具
+pip install black flake8 isort bandit
+
+# 代码格式化
+black .
+isort .
+
+# 静态检查
+flake8 .
+
+# 安全扫描
+bandit -r . -x ./test_*.py
+```
+
 ## 📋 优先贡献方向
 
 查看 [Roadmap](README.md#-roadmap) 了解当前需要的功能：
diff --git a/README.md b/README.md
index 568c649f7..99bc94460 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # 📈 A股智能分析系统
 
 [![GitHub stars](https://img.shields.io/github/stars/ZhuLinsen/daily_stock_analysis?style=social)](https://github.com/ZhuLinsen/daily_stock_analysis/stargazers)
+[![CI](https://github.com/ZhuLinsen/daily_stock_analysis/actions/workflows/ci.yml/badge.svg)](https://github.com/ZhuLinsen/daily_stock_analysis/actions/workflows/ci.yml)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![Python 3.10+](https://img.shields.io/badge/python-3.10+-blue.svg)](https://www.python.org/downloads/)
 [![GitHub Actions](https://img.shields.io/badge/GitHub%20Actions-Ready-2088FF?logo=github-actions&logoColor=white)](https://github.com/features/actions)
@@ -68,7 +69,7 @@
 | `TELEGRAM_CHAT_ID` | Telegram Chat ID | 可选 |
 | `EMAIL_SENDER` | 发件人邮箱（如 `xxx@qq.com`） | 可选 |
 | `EMAIL_PASSWORD` | 邮箱授权码（非登录密码） | 可选 |
-| `EMAIL_RECEIVERS` | 收件人邮箱（留空则发给自己） | 可选 |
+| `EMAIL_RECEIVERS` | 收件人邮箱（多个用逗号分隔，留空则发给自己） | 可选 |
 | `CUSTOM_WEBHOOK_URLS` | 自定义 Webhook（多个用逗号分隔） | 可选 |
 
 > *注：至少配置一个渠道，配置多个则同时推送到所有渠道
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 000000000..5a3a81c52
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,28 @@
+[tool.black]
+line-length = 120
+target-version = ['py310', 'py311', 'py312']
+include = '\.pyi?$'
+exclude = '''
+/(
+    \.git
+    | \.hg
+    | \.mypy_cache
+    | \.tox
+    | \.venv
+    | venv
+    | _build
+    | buck-out
+    | build
+    | dist
+    | __pycache__
+)/
+'''
+
+[tool.isort]
+profile = "black"
+line_length = 120
+skip = [".git", "__pycache__", ".env", "venv", ".venv"]
+
+[tool.bandit]
+exclude_dirs = ["tests", "test_*.py"]
+skips = ["B101"]  # assert 语句在测试中是允许的
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 000000000..54feecbd4
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,28 @@
+[flake8]
+max-line-length = 120
+exclude = 
+    .git,
+    __pycache__,
+    .env,
+    venv,
+    .venv,
+    build,
+    dist,
+    *.egg-info
+# E501: 行太长（有些地方确实需要长行）
+# W503: 运算符在换行前（与 black 冲突）
+# E203: 切片前的空格（与 black 冲突）
+# E402: 模块级导入不在文件顶部（有时需要先设置环境变量）
+ignore = E501,W503,E203,E402
+
+[tool:pytest]
+testpaths = .
+python_files = test_*.py
+python_functions = test_*
+addopts = -v --tb=short
+
+[isort]
+profile = black
+line_length = 120
+skip = .git,__pycache__,.env,venv,.venv
+known_first_party = config,storage,analyzer,notification,scheduler,search_service,market_analyzer,stock_analyzer,data_provider