diff --git a/DrissionPage/_base/browser.py b/DrissionPage/_base/browser.py
index 89fd915..ce41cff 100644
--- a/DrissionPage/_base/browser.py
+++ b/DrissionPage/_base/browser.py
@@ -210,7 +210,7 @@ class Browser(object):
             ip, port = self.address.split(':')
             if ip not in ('127.0.0.1', 'localhost'):
                 return
-            stop_process_on_port(port)
+            stop_process_on_port(port, self.process_id)
             return
 
         if self.process_id:
diff --git a/DrissionPage/_functions/browser.py b/DrissionPage/_functions/browser.py
index 4f79269..2fbc5c7 100644
--- a/DrissionPage/_functions/browser.py
+++ b/DrissionPage/_functions/browser.py
@@ -157,7 +157,7 @@ def set_prefs(opt):
 
 
 def set_flags(opt):
-    """处理启动配置中的prefs项，目前只能对已存在文件夹配置
+    """处理启动配置中的flags项
     :param opt: ChromiumOptions
     :return: None
     """
diff --git a/DrissionPage/_functions/tools.py b/DrissionPage/_functions/tools.py
index ee4ba25..dfd2340 100644
--- a/DrissionPage/_functions/tools.py
+++ b/DrissionPage/_functions/tools.py
@@ -12,7 +12,7 @@ from tempfile import gettempdir, TemporaryDirectory
 from threading import Lock
 from time import perf_counter
 
-from psutil import process_iter, AccessDenied, NoSuchProcess, ZombieProcess
+from psutil import process_iter, AccessDenied, NoSuchProcess, ZombieProcess, Process
 
 from .._configs.options_manage import OptionsManager
 from ..errors import (ContextLostError, ElementLostError, CDPError, PageDisconnectedError, NoRectError,
@@ -182,9 +182,10 @@ def wait_until(function, kwargs=None, timeout=10):
     raise TimeoutError
 
 
-def stop_process_on_port(port):
+def stop_process_on_port(port, pid=None):
     """强制关闭某个端口内的进程
     :param port: 端口号
+    :param pid: 进程号
     :return: None
     """
     for proc in process_iter(['pid', 'connections']):
@@ -201,6 +202,16 @@ def stop_process_on_port(port):
                 except Exception as e:
                     print(f"{proc.pid} {port}: {e}")
 
+    if pid:
+        for p in Process(pid).children():
+            try:
+                p.terminate()
+            except:
+                pass
+        try:
+            Process(pid).terminate()
+        except:
+            pass
 
 def configs_to_here(save_name=None):
     """把默认ini文件复制到当前目录
diff --git a/DrissionPage/_functions/tools.pyi b/DrissionPage/_functions/tools.pyi
index f6e13f5..f6b55c0 100644
--- a/DrissionPage/_functions/tools.pyi
+++ b/DrissionPage/_functions/tools.pyi
@@ -42,7 +42,7 @@ def get_hwnds_from_pid(pid: Union[str, int], title: str) -> list: ...
 def wait_until(function: callable, kwargs: dict = None, timeout: float = 10): ...
 
 
-def stop_process_on_port(port: Union[int, str]) -> None: ...
+def stop_process_on_port(port: Union[int, str], pid: int = None) -> None: ...
 
 
 def configs_to_here(file_name: Union[Path, str] = None) -> None: ...