diff --git a/DrissionPage/driver_element.py b/DrissionPage/driver_element.py
index 8561344..f442705 100644
--- a/DrissionPage/driver_element.py
+++ b/DrissionPage/driver_element.py
@@ -126,7 +126,11 @@ class DriverElement(DrissionElement):
     @property
     def shadow_root(self):
         e = self.run_script('return arguments[0].shadowRoot')
-        return ShadowRootElement(e, self) if e else None
+        if e:
+            from shadow_root_element import ShadowRootElement
+            return ShadowRootElement(e, self)
+        else:
+            return None
 
     @property
     def parent(self):
@@ -450,37 +454,6 @@ class DriverElement(DrissionElement):
         ActionChains(self._driver).move_to_element(self.inner_ele).perform()
 
 
-class ShadowRootElement(DrissionElement):
-    def __init__(self, inner_ele: WebElement, parent_ele: DriverElement):
-        super().__init__(inner_ele)
-        self.parent_ele = parent_ele
-
-    def ele(self, loc: Union[tuple, str], mode: str = None, show_errmsg: bool = True):
-        pass
-
-    def eles(self, loc: Union[tuple, str], show_errmsg: bool = True):
-        pass
-
-    def attr(self, attr: str):
-        return self.html if attr == 'innerHTML' else None
-
-    def run_script(self, script: str, *args) -> Any:
-        """执行js代码，传入自己为第一个参数  \n
-        :param script: js文本
-        :param args: 传入的参数
-        :return: js执行结果
-        """
-        return self.inner_ele.parent.execute_script(script, self.inner_ele, *args)
-
-    @property
-    def html(self):
-        return unescape(self.attr('innerHTML')).replace('\xa0', ' ')
-
-    @property
-    def parent(self) -> DriverElement:
-        return self.parent_ele
-
-
 def execute_driver_find(page_or_ele: Union[WebElement, WebDriver],
                         loc: tuple,
                         mode: str = 'single',
diff --git a/DrissionPage/shadow_root_element.py b/DrissionPage/shadow_root_element.py
new file mode 100644
index 0000000..ca9f847
--- /dev/null
+++ b/DrissionPage/shadow_root_element.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+# -*- coding:utf-8 -*-
+from html import unescape
+from typing import Union, Any
+
+from selenium.webdriver.remote.webelement import WebElement
+
+from common import DrissionElement
+
+
+# from driver_element import DriverElement
+
+
+class ShadowRootElement(DrissionElement):
+    def __init__(self, inner_ele: WebElement, parent_ele):
+        super().__init__(inner_ele)
+        self.parent_ele = parent_ele
+
+    def ele(self, loc: Union[tuple, str], mode: str = None, show_errmsg: bool = True):
+        pass
+
+    def eles(self, loc: Union[tuple, str], show_errmsg: bool = True):
+        pass
+
+    def attr(self, attr: str):
+        return self.html if attr == 'innerHTML' else None
+
+    def run_script(self, script: str, *args) -> Any:
+        """执行js代码，传入自己为第一个参数  \n
+        :param script: js文本
+        :param args: 传入的参数
+        :return: js执行结果
+        """
+        return self.inner_ele.parent.execute_script(script, self.inner_ele, *args)
+
+    @property
+    def html(self):
+        return unescape(self.attr('innerHTML')).replace('\xa0', ' ')
+
+    @property
+    def parent(self):
+        return self.parent_ele
+
+    def is_enabled(self) -> bool:
+        """是否可用"""
+        return self.inner_ele.is_enabled()
+
+    def is_valid(self) -> bool:
+        """用于判断元素是否还能用，应对页面跳转元素不能用的情况"""
+        try:
+            self.is_enabled()
+            return True
+        except:
+            return False