diff --git a/main_start.py b/main_start.py
index db5c53f..d9ecd9c 100644
--- a/main_start.py
+++ b/main_start.py
@@ -1,6 +1,6 @@
 # main_start.py
 # 主启动脚本：读取配置并通过 subprocess 启动 rtsp_service_ws_kadian.py
-# 支持 start 和 status 命令，默认执行 start
+# 支持 start, stop, restart, status 命令，默认执行 start
 
 import json
 import yaml
@@ -10,6 +10,7 @@ import sys
 import os
 import signal
 import argparse
+import time
 from typing import List
 
 from common.camera_config import CameraConfig
@@ -108,7 +109,6 @@ def start_service():
     try:
         process = start_rtsp_service(cameras_base64)
         # 等待一下确保进程启动
-        import time
         time.sleep(1)
         
         # 4. 保存PID
@@ -141,16 +141,84 @@ def status_service():
         return False
 
 
+def stop_service(force=False):
+    """停止服务"""
+    pid = read_pid()
+    if not pid:
+        logger.error("[ERROR] No PID file found, service may not be running")
+        return False
+    
+    if not is_process_running(pid):
+        logger.warning(f"[WARN] Process with PID {pid} is not running, cleaning up PID file")
+        try:
+            os.remove(PID_FILE)
+        except:
+            pass
+        return True
+    
+    # 发送终止信号
+    try:
+        if force:
+            logger.info(f"[INFO] Force killing process {pid} with SIGKILL")
+            os.kill(pid, signal.SIGKILL)
+        else:
+            logger.info(f"[INFO] Gracefully stopping process {pid} with SIGTERM")
+            os.kill(pid, signal.SIGTERM)
+        
+        # 等待进程结束（最多10秒）
+        for i in range(10):
+            if not is_process_running(pid):
+                break
+            time.sleep(1)
+        
+        # 如果进程还在，强制杀死
+        if is_process_running(pid):
+            logger.warning(f"[WARN] Process {pid} still running after SIGTERM, sending SIGKILL")
+            os.kill(pid, signal.SIGKILL)
+            time.sleep(1)
+        
+        # 清理PID文件
+        if os.path.exists(PID_FILE):
+            os.remove(PID_FILE)
+        
+        logger.info(f"[INFO] Service stopped successfully (PID: {pid})")
+        return True
+    except Exception as e:
+        logger.error(f"[ERROR] Failed to stop service: {e}")
+        return False
+
+
+def restart_service():
+    """重启服务"""
+    logger.info("[INFO] Restarting service...")
+    
+    # 先停止
+    if status_service():
+        stop_service()
+        time.sleep(2)  # 等待进程完全停止
+    
+    # 再启动
+    return start_service()
+
+
 def main():
     parser = argparse.ArgumentParser(description="RTSP Service Manager")
-    parser.add_argument("command", nargs="?", choices=["start", "status"], default="start",
-                       help="Command to execute: start, status (default: start)")
+    parser.add_argument("command", nargs="?", choices=["start", "stop", "restart", "status"], default="start",
+                       help="Command to execute: start, stop, restart, status (default: start)")
+    parser.add_argument("--force", action="store_true",
+                       help="Force stop (send SIGKILL immediately)")
     
     args = parser.parse_args()
     
     if args.command == "start":
         success = start_service()
         sys.exit(0 if success else 1)
+    elif args.command == "stop":
+        success = stop_service(force=args.force)
+        sys.exit(0 if success else 1)
+    elif args.command == "restart":
+        success = restart_service()
+        sys.exit(0 if success else 1)
     elif args.command == "status":
         success = status_service()
         sys.exit(0 if success else 0)  # 状态检查总是返回0退出码