diff --git a/app.py b/app.py
index 1ebf6ec..9152406 100644
--- a/app.py
+++ b/app.py
@@ -9,6 +9,7 @@ import json
 import subprocess
 import signal
 import threading
+import sys
 from datetime import datetime
 from flask import Flask, render_template_string, jsonify, request
 import urllib.request
@@ -20,11 +21,58 @@ BASE_DIR = os.path.dirname(os.path.abspath(__file__))
 WORKSPACE_DIR = os.path.dirname(BASE_DIR)  # works目录
 ROOT_DIR = os.path.dirname(WORKSPACE_DIR)  # workspace-coder目录
 PROJECTS_FILE = os.path.join(BASE_DIR, 'projects.json')
+LOG_FILE = os.path.join(BASE_DIR, 'logs', 'app.log')
 
 # 进程状态缓存
 process_cache = {}
 
 
+def log_message(msg):
+    """写入日志"""
+    timestamp = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+    log_line = f"[{timestamp}] {msg}\n"
+    # 同时输出到控制台和日志文件
+    print(log_line.strip())
+    try:
+        os.makedirs(os.path.dirname(LOG_FILE), exist_ok=True)
+        with open(LOG_FILE, 'a') as f:
+            f.write(log_line)
+    except:
+        pass
+
+
+def signal_handler(signum, frame):
+    """处理信号，记录kill来源"""
+    signal_names = {
+        signal.SIGTERM: 'SIGTERM',
+        signal.SIGINT: 'SIGINT',
+        signal.SIGHUP: 'SIGHUP',
+    }
+    sig_name = signal_names.get(signum, f'SIGNAL_{signum}')
+    
+    # 尝试获取kill来源
+    try:
+        import psutil
+        proc = psutil.Process()
+        parent = proc.parent()
+        parent_info = f"父进程: {parent.pid} ({parent.name()})"
+    except:
+        parent_info = "无法获取父进程信息"
+    
+    log_message(f"⚠️ 进程收到 {sig_name} 信号，即将退出! {parent_info}")
+    log_message(f"信号来源可能是: 手动kill命令、systemd、OOM killer、或其他进程")
+    sys.exit(0)
+
+
+# 注册信号处理
+signal.signal(signal.SIGTERM, signal_handler)
+signal.signal(signal.SIGINT, signal_handler)
+try:
+    signal.signal(signal.SIGHUP, signal_handler)
+except:
+    pass  # Windows不支持SIGHUP
+
+
 def load_projects():
     """加载项目配置"""
     with open(PROJECTS_FILE, 'r', encoding='utf-8') as f:
@@ -1322,8 +1370,9 @@ def api_crons():
 
 if __name__ == '__main__':
     os.makedirs(os.path.join(BASE_DIR, 'logs'), exist_ok=True)
-    print("=" * 50)
-    print("项目服务管理面板")
-    print("访问地址: http://localhost:19013")
-    print("=" * 50)
+    log_message("=" * 50)
+    log_message("项目服务管理面板启动")
+    log_message("访问地址: http://localhost:19013")
+    log_message(f"进程PID: {os.getpid()}")
+    log_message("=" * 50)
     app.run(host='0.0.0.0', port=19013, debug=False)
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