diff --git a/app.py b/app.py
index 14b50b7..0de1f35 100644
--- a/app.py
+++ b/app.py
@@ -3,6 +3,7 @@
 
 import os
 import logging
+from typing import Dict, Tuple, Any
 
 
 os.environ.setdefault('FLASK_RUN_HOST', '0.0.0.0')
@@ -79,7 +80,11 @@ def handle_gitea_webhook():
         event_type = request.headers.get('X-Gitea-Event', 'push')
         logger.info(f'收到 Gitea Webhook 事件: {event_type}')
 
-        # 只处理 push 事件
+        # 处理 Pull Request 事件
+        if event_type == 'pull_request':
+            return handle_pull_request(payload)
+
+        # 处理 Push 事件
         if event_type != 'push':
             return jsonify({'message': 'Event ignored'}), 200
 
@@ -161,6 +166,95 @@ def handle_gitea_webhook():
         return jsonify({'error': str(e)}), 500
 
 
+def handle_pull_request(payload: Dict[str, Any]) -> Tuple[Dict, int]:
+    """
+    处理 Pull Request 事件
+
+    Args:
+        payload: Webhook payload
+
+    Returns:
+        JSON 响应和状态码
+    """
+    try:
+        # 解析 PR 事件
+        pr_info = webhook_handler.parse_pull_request_event(payload)
+
+        if not pr_info:
+            logger.info('PR 事件不需要处理（如关闭、合并等）')
+            return jsonify({'message': 'PR event ignored'}), 200
+
+        repo_name = pr_info['repo_name']
+        source_branch = pr_info['source_branch']
+        source_sha = pr_info['source_sha']
+        pr_number = pr_info['pr_number']
+        pr_title = pr_info['pr_title']
+        pr_url = pr_info['pr_url']
+        target_branch = pr_info['target_branch']
+        author = pr_info['author']
+
+        logger.info(f'处理 PR #{pr_number}: {pr_title} ({source_branch} -> {target_branch})')
+        logger.info(f'扫描 PR 分支: {source_branch}, commit: {source_sha}')
+
+        try:
+            # 获取仓库 URL
+            repo = payload.get('repository', {})
+            clone_url = repo.get('clone_url')
+            if not clone_url:
+                web_url = repo.get('web_url', '')
+                if web_url:
+                    clone_url = web_url.rstrip('/') + '.git'
+
+            # 执行代码扫描
+            scan_results = {}
+
+            # Python 扫描
+            if 'python' in config.get('scanner', {}).get('languages', []):
+                scan_results['python'] = python_scanner.scan(
+                    clone_url, source_sha, source_branch
+                )
+
+            # JavaScript/TypeScript 扫描
+            if any(lang in config.get('scanner', {}).get('languages', [])
+                   for lang in ['javascript', 'typescript']):
+                scan_results['javascript'] = js_scanner.scan(
+                    clone_url, source_sha, source_branch
+                )
+
+            # 安全扫描
+            scan_results['security'] = security_scanner.scan(
+                clone_url, source_sha, source_branch
+            )
+
+            # 生成报告
+            commit_message = f'PR #{pr_number}: {pr_title}'
+            report = report_generator.generate(
+                repo_name=repo_name,
+                branch=source_branch,
+                commit_id=source_sha,
+                commit_message=commit_message,
+                author=author,
+                scan_results=scan_results,
+                pr_url=pr_url,
+                target_branch=target_branch
+            )
+
+            # 发送飞书通知
+            feishu_notifier.send_report(report)
+
+            logger.info(f'PR #{pr_number} 扫描完成')
+
+        except Exception as e:
+            logger.error(f'扫描 PR #{pr_number} 失败: {str(e)}')
+            return jsonify({'error': str(e)}), 500
+
+        return jsonify({'status': 'ok', 'message': 'PR scan completed'}), 200
+
+    except Exception as e:
+        logger.error(f'处理 PR Webhook 失败: {str(e)}', exc_info=True)
+        return jsonify({'error': str(e)}), 500
+
+
 @app.route('/scan/manual', methods=['POST'])
 def manual_scan():
     """手动触发扫描接口"""
diff --git a/notify/feishu.py b/notify/feishu.py
index 5ca5e2a..69a289f 100644
--- a/notify/feishu.py
+++ b/notify/feishu.py
@@ -147,20 +147,41 @@ class FeishuNotifier:
             summary = result.get('summary', {})
             files_scanned = result.get('files_scanned', 0)
             total = summary.get('total', 0)
-            
+
             if total > 0:
                 detail_text = f"{tool_name}: 扫描 {files_scanned} 个文件，发现 {total} 个问题"
             else:
                 detail_text = f"{tool_name}: 扫描 {files_scanned} 个文件，无问题"
-            
+
             scan_details.append(detail_text)
 
+        # 检查是否为 PR 扫描
+        pr_url = report.get('pr_url')
+        target_branch = report.get('target_branch')
+
+        # 构建基本信息文本
+        if pr_url and target_branch:
+            # PR 扫描
+            title = f"{status_icon} PR 代码质量扫描报告"
+            basic_info = (f"**仓库:** `{report.get('repo_name', 'unknown')}`\n"
+                         f"**源分支:** `{report.get('branch', 'unknown')}` → **目标分支:** `{target_branch}`\n"
+                         f"**PR链接:** [查看PR]({pr_url})\n"
+                         f"**提交:** `{report.get('commit_id', 'unknown')}`\n"
+                         f"**提交者:** {report.get('author', 'unknown')}")
+        else:
+            # Push 扫描
+            title = f"{status_icon} 代码质量扫描报告"
+            basic_info = (f"**仓库:** `{report.get('repo_name', 'unknown')}`\n"
+                         f"**分支:** `{report.get('branch', 'unknown')}`\n"
+                         f"**提交:** `{report.get('commit_id', 'unknown')}`\n"
+                         f"**提交者:** {report.get('author', 'unknown')}")
+
         # 构建卡片消息
         card = {
             "header": {
                 "title": {
                     "tag": "plain_text",
-                    "content": f"{status_icon} 代码质量扫描报告"
+                    "content": title
                 },
                 "template": theme_color
             },
@@ -169,10 +190,7 @@ class FeishuNotifier:
                     "tag": "div",
                     "text": {
                         "tag": "lark_md",
-                        "content": f"**仓库:** `{report.get('repo_name', 'unknown')}`\n"
-                                   f"**分支:** `{report.get('branch', 'unknown')}`\n"
-                                   f"**提交:** `{report.get('commit_id', 'unknown')}`\n"
-                                   f"**提交者:** {report.get('author', 'unknown')}"
+                        "content": basic_info
                     }
                 },
                 {
diff --git a/report/generator.py b/report/generator.py
index 447f436..1b674f7 100644
--- a/report/generator.py
+++ b/report/generator.py
@@ -37,7 +37,9 @@ class ReportGenerator:
         commit_id: str,
         commit_message: str,
         author: str,
-        scan_results: Dict[str, Any]
+        scan_results: Dict[str, Any],
+        pr_url: str = None,
+        target_branch: str = None
     ) -> Dict[str, Any]:
         """
         生成扫描报告
@@ -49,6 +51,8 @@ class ReportGenerator:
             commit_message: 提交信息
             author: 提交者
             scan_results: 扫描结果
+            pr_url: PR 链接（可选）
+            target_branch: 目标分支（可选，用于 PR 扫描）
 
         Returns:
             报告数据
@@ -89,8 +93,10 @@ class ReportGenerator:
             'total_errors': total_errors,
             'total_warnings': total_warnings,
             'scan_results': scan_results,
+            'pr_url': pr_url,
+            'target_branch': target_branch,
             'markdown': self._generate_markdown(
-                repo_name, branch, commit_id, commit_message, author, scan_results, status, status_text
+                repo_name, branch, commit_id, commit_message, author, scan_results, status, status_text, pr_url, target_branch
             )
         }
 
@@ -109,13 +115,18 @@ class ReportGenerator:
         author: str,
         scan_results: Dict[str, Any],
         status: str,
-        status_text: str
+        status_text: str,
+        pr_url: str = None,
+        target_branch: str = None
     ) -> str:
         """生成 Markdown 格式的报告"""
         lines = []
 
-        # 标题
-        lines.append('# 📊 代码质量扫描报告')
+        # 标题 - 根据是否为 PR 扫描显示不同标题
+        if pr_url:
+            lines.append('# 📊 PR 代码质量扫描报告')
+        else:
+            lines.append('# 📊 代码质量扫描报告')
         lines.append('')
 
         # 基本信息
@@ -124,7 +135,15 @@ class ReportGenerator:
         lines.append(f'| 项目 | 内容 |')
         lines.append(f'|------|------|')
         lines.append(f'| 仓库 | `{repo_name}` |')
-        lines.append(f'| 分支 | `{branch}` |')
+
+        # 如果是 PR，显示 PR 特有信息
+        if pr_url and target_branch:
+            lines.append(f'| 源分支 | `{branch}` |')
+            lines.append(f'| 目标分支 | `{target_branch}` |')
+            lines.append(f'| PR 链接 | [查看 PR]({pr_url}) |')
+        else:
+            lines.append(f'| 分支 | `{branch}` |')
+
         lines.append(f'| 提交 | `{commit_id}` |')
         lines.append(f'| 提交者 | {author} |')
         lines.append(f'| 提交信息 | {commit_message[:50]}... |' if len(commit_message) > 50 else f'| 提交信息 | {commit_message} |')
diff --git a/webhook/handler.py b/webhook/handler.py
index 7d32c26..4a054f3 100644
--- a/webhook/handler.py
+++ b/webhook/handler.py
@@ -124,3 +124,66 @@ class GiteaWebhookHandler:
             f for f in files
             if any(f.endswith(ext) for ext in extensions)
         ]
+
+    def parse_pull_request_event(self, payload: Dict[str, Any]) -> Dict[str, Any]:
+        """
+        解析 Pull Request 事件
+
+        Args:
+            payload: Webhook payload
+
+        Returns:
+            解析后的 PR 信息
+        """
+        action = payload.get('action', '')
+        pr = payload.get('pull_request', {})
+        repo = payload.get('repository', {})
+
+        # 只处理 PR 创建和更新事件
+        if action not in ['opened', 'reopened', 'synchronize', 'ready_for_review']:
+            return None
+
+        # 获取 PR 的源分支和目标分支
+        head = pr.get('head', {})
+        base = pr.get('base', {})
+
+        return {
+            'action': action,
+            'repo_name': repo.get('full_name', ''),
+            'repo_url': repo.get('clone_url', ''),
+            'web_url': repo.get('web_url', ''),
+            'pr_number': pr.get('number', 0),
+            'pr_title': pr.get('title', ''),
+            'pr_body': pr.get('body', ''),
+            'pr_url': pr.get('html_url', ''),
+            'source_branch': head.get('ref', ''),
+            'source_sha': head.get('sha', '')[:8],
+            'target_branch': base.get('ref', ''),
+            'target_sha': base.get('sha', '')[:8],
+            'author': pr.get('user', {}).get('login', ''),
+            'author_email': pr.get('user', {}).get('email', ''),
+            'state': pr.get('state', ''),
+            'merged': pr.get('merged', False),
+        }
+
+    def get_pr_diff_files(self, payload: Dict[str, Any]) -> list:
+        """
+        从 Pull Request 事件中获取变更的文件列表
+
+        Args:
+            payload: Webhook payload
+
+        Returns:
+            变更的文件列表
+        """
+        pr = payload.get('pull_request', {})
+        files = pr.get('changed_files', [])
+
+        # 如果没有 changed_files 字段，尝试从 commits 中获取
+        if not files:
+            commits = pr.get('commits', [])
+            files = []
+            for commit in commits:
+                files.extend(self.get_changed_files(commit))
+
+        return files
\ No newline at end of file