diff --git a/DrissionPage/_pages/chromium_base.py b/DrissionPage/_pages/chromium_base.py
index 9ca83ed..8ff490c 100644
--- a/DrissionPage/_pages/chromium_base.py
+++ b/DrissionPage/_pages/chromium_base.py
@@ -493,6 +493,19 @@ class ChromiumBase(BasePage):
         """
         run_js(self, script, as_expr, 0, args)
 
+    def add_init_script(self, script: str, raise_error=True):
+        '''添加初始化脚本，在页面加载任何脚本前执行
+        :param script: js文本
+        :return: identifier 添加的脚本的标识符，用于删除，失败时返回False，或raise Error
+        '''
+        result = self.driver.run('Page.addScriptToEvaluateOnNewDocument', source=script)
+        if not result or __ERROR__ not in result:
+            return result['identifier']
+        else:
+            if raise_error:
+                raise_error(str(result))
+            return False
+        
     def get(self, url, show_errmsg=False, retry=None, interval=None, timeout=None):
         """访问url
         :param url: 目标url