diff --git a/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts b/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts
index a0ab84b3..5c0773c1 100644
--- a/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts
+++ b/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts
@@ -48,7 +48,7 @@ export function setDomProps(dom: Element, props: Object, isNativeTag: boolean, i
       }
     } else if (propName === 'dangerouslySetInnerHTML') {
       dom.innerHTML = propVal.__html;
-    } else if (!isInit || (isInit && propVal != null)) {
+    } else if (!isInit || propVal != null) {
       updateCommonProp(dom, propName, propVal, isNativeTag);
     }
   }
@@ -70,7 +70,7 @@ export function compareProps(oldProps: Object, newProps: Object): Object {
   for (let i = 0; i < oldPropsLength; i++) {
     propName = keysOfOldProps[i];
     // 新属性中包含该属性或者该属性为空值的属性不需要处理
-    if (keysOfNewProps.includes(propName) || oldProps[propName] == null) {
+    if ( oldProps[propName] == null || keysOfNewProps.includes(propName)) {
       continue;
     }
 
diff --git a/libs/horizon/src/event/EventBinding.ts b/libs/horizon/src/event/EventBinding.ts
index 25c52b90..fd7a4d0c 100644
--- a/libs/horizon/src/event/EventBinding.ts
+++ b/libs/horizon/src/event/EventBinding.ts
@@ -82,8 +82,7 @@ export function lazyDelegateOnRoot(currentRoot: VNode, eventName: string) {
     }
 
     if (!events[nativeFullName]) {
-      const listener = listenToNativeEvent(nativeEvent, currentRoot.realNode, isCapture);
-      events[nativeFullName] = listener;
+      events[nativeFullName] = listenToNativeEvent(nativeEvent, currentRoot.realNode, isCapture);
     }
   });
 }
diff --git a/libs/horizon/src/external/ChildrenUtil.ts b/libs/horizon/src/external/ChildrenUtil.ts
index 39c2e96c..3624a736 100644
--- a/libs/horizon/src/external/ChildrenUtil.ts
+++ b/libs/horizon/src/external/ChildrenUtil.ts
@@ -17,6 +17,7 @@ import { throwIfTrue } from '../renderer/utils/throwIfTrue';
 import { TYPE_COMMON_ELEMENT, TYPE_PORTAL } from './JSXElementType';
 
 import { isValidElement, JSXElement } from './JSXElement';
+import { BELONG_CLASS_VNODE_KEY } from '../renderer/vnode/VNode';
 
 // 生成key
 function getItemKey(item: any, index: number): string {
@@ -83,7 +84,7 @@ function callMapFun(children: any, arr: Array<any>, prefix: string, callback: Fu
         mappedChild.type,
         newKey,
         mappedChild.ref,
-        mappedChild.belongClassVNode,
+        mappedChild[BELONG_CLASS_VNODE_KEY],
         mappedChild.props,
         mappedChild.src
       );
diff --git a/libs/horizon/src/external/JSXElement.ts b/libs/horizon/src/external/JSXElement.ts
index 3de212b3..ccf43079 100644
--- a/libs/horizon/src/external/JSXElement.ts
+++ b/libs/horizon/src/external/JSXElement.ts
@@ -16,6 +16,7 @@
 import { TYPE_COMMON_ELEMENT } from './JSXElementType';
 import { getProcessingClassVNode } from '../renderer/GlobalVar';
 import { Source } from '../renderer/Types';
+import { BELONG_CLASS_VNODE_KEY } from '../renderer/vnode/VNode';
 
 /**
  * vtype 节点的类型，这里固定是element
@@ -36,17 +37,9 @@ export function JSXElement(type, key, ref, vNode, props, source: Source | null)
     ref: ref,
     props: props,
 
-    // 所属的class组件
-    belongClassVNode: null,
+    // 所属的class组件,clonedeep jsxElement时需要防止无限循环
+    [BELONG_CLASS_VNODE_KEY]: vNode,
   };
-
-  // 在 cloneDeep JSXElement 的时候会出现死循环，需要设置belongClassVNode的enumerable为false
-  Object.defineProperty(ele, 'belongClassVNode', {
-    configurable: false,
-    enumerable: false,
-    value: vNode,
-  });
-
   if (isDev) {
     // 为了test判断两个 JSXElement 对象是否相等时忽略src属性，需要设置src的enumerable为false
     Object.defineProperty(ele, 'src', {
@@ -60,11 +53,6 @@ export function JSXElement(type, key, ref, vNode, props, source: Source | null)
   return ele;
 }
 
-function isValidKey(key) {
-  const keyArray = ['key', 'ref', '__source', '__self'];
-  return !keyArray.includes(key);
-}
-
 function mergeDefault(sourceObj, defaultObj) {
   Object.keys(defaultObj).forEach(key => {
     if (sourceObj[key] === undefined) {
@@ -73,19 +61,20 @@ function mergeDefault(sourceObj, defaultObj) {
   });
 }
 
+// ['key', 'ref', '__source', '__self']属性不从setting获取
+const keyArray = ['key', 'ref', '__source', '__self'];
+
 function buildElement(isClone, type, setting, children) {
   // setting中的值优先级最高，clone情况下从 type 中取值，创建情况下直接赋值为 null
-  const key = setting && setting.key !== undefined ? String(setting.key) : isClone ? type.key : null;
-  const ref = setting && setting.ref !== undefined ? setting.ref : isClone ? type.ref : null;
+  const key = (setting && setting.key !== undefined) ? String(setting.key) : (isClone ? type.key : null);
+  const ref = (setting && setting.ref !== undefined) ? setting.ref : (isClone ? type.ref : null);
   const props = isClone ? { ...type.props } : {};
-  let vNode = isClone ? type.belongClassVNode : getProcessingClassVNode();
+  let vNode = isClone ? type[BELONG_CLASS_VNODE_KEY] : getProcessingClassVNode();
 
   if (setting !== null && setting !== undefined) {
-    const keys = Object.keys(setting);
-    const keyLength = keys.length;
-    for (let i = 0; i < keyLength; i++) {
-      const k = keys[i];
-      if (isValidKey(k)) {
+
+    for (const k in setting) {
+      if (!keyArray.includes(k)) {
         props[k] = setting[k];
       }
     }
@@ -109,7 +98,6 @@ function buildElement(isClone, type, setting, children) {
       lineNumber: setting.__source.lineNumber,
     };
   }
-
   return JSXElement(element, key, ref, vNode, props, src);
 }
 
diff --git a/libs/horizon/src/renderer/RootStack.ts b/libs/horizon/src/renderer/RootStack.ts
index 6a793a0f..814ca840 100644
--- a/libs/horizon/src/renderer/RootStack.ts
+++ b/libs/horizon/src/renderer/RootStack.ts
@@ -15,15 +15,20 @@
 
 import { VNode } from './vnode/VNode';
 
-const currentRootStack: VNode[] = [];
+const currentRootStack: (VNode | undefined)[] = [];
+let index = -1;
 export function getCurrentRoot() {
-  return currentRootStack[currentRootStack.length - 1];
+  return currentRootStack[index];
 }
 
 export function pushCurrentRoot(root: VNode) {
-  return currentRootStack.push(root);
+  index++;
+  currentRootStack[index] = root;
 }
 
 export function popCurrentRoot() {
-  return currentRootStack.pop();
+  const target = currentRootStack[index];
+  currentRootStack[index] = undefined;
+  index--;
+  return target;
 }
diff --git a/libs/horizon/src/renderer/Types.ts b/libs/horizon/src/renderer/Types.ts
index 91b6bfbd..9598855e 100644
--- a/libs/horizon/src/renderer/Types.ts
+++ b/libs/horizon/src/renderer/Types.ts
@@ -13,6 +13,8 @@
  * See the Mulan PSL v2 for more details.
  */
 
+import { BELONG_CLASS_VNODE_KEY } from './vnode/VNode';
+
 export { VNode } from './vnode/VNode';
 
 type Trigger<A> = (A) => void;
@@ -32,7 +34,7 @@ export type JSXElement = {
   key: any;
   ref: any;
   props: any;
-  belongClassVNode: any;
+  [BELONG_CLASS_VNODE_KEY]: any;
 };
 
 export type ProviderType<T> = {
diff --git a/libs/horizon/src/renderer/diff/nodeDiffComparator.ts b/libs/horizon/src/renderer/diff/nodeDiffComparator.ts
index 61706bea..42f30b53 100644
--- a/libs/horizon/src/renderer/diff/nodeDiffComparator.ts
+++ b/libs/horizon/src/renderer/diff/nodeDiffComparator.ts
@@ -27,6 +27,7 @@ import {
 import { isSameType, getIteratorFn, isTextType, isIteratorType, isObjectType } from './DiffTools';
 import { travelChildren } from '../vnode/VNodeUtils';
 import { markVNodePath } from '../utils/vNodePath';
+import { BELONG_CLASS_VNODE_KEY } from '../vnode/VNode';
 
 enum DiffCategory {
   TEXT_NODE = 'TEXT_NODE',
@@ -166,11 +167,11 @@ function getNewNode(parentNode: VNode, newChild: any, oldNode: VNode | null) {
         if (oldNode === null || !isSameType(oldNode, newChild)) {
           resultNode = createVNodeFromElement(newChild);
           resultNode.ref = newChild.ref;
-          resultNode.belongClassVNode = newChild.belongClassVNode;
+          resultNode[BELONG_CLASS_VNODE_KEY] = newChild[BELONG_CLASS_VNODE_KEY];
         } else {
           resultNode = updateVNode(oldNode, newChild.props);
           resultNode.ref = newChild.ref;
-          resultNode.belongClassVNode = newChild.belongClassVNode;
+          resultNode[BELONG_CLASS_VNODE_KEY] = newChild[BELONG_CLASS_VNODE_KEY];
         }
         break;
       } else if (newChild.vtype === TYPE_PORTAL) {
@@ -570,7 +571,7 @@ function diffObjectNodeHandler(
       } else if (isSameType(canReuseNode, newChild)) {
         resultNode = updateVNode(canReuseNode, newChild.props);
         resultNode.ref = newChild.ref;
-        resultNode.belongClassVNode = newChild.belongClassVNode;
+        resultNode[BELONG_CLASS_VNODE_KEY] = newChild[BELONG_CLASS_VNODE_KEY];
         startDelVNode = resultNode.next;
         resultNode.next = null;
       }
@@ -583,7 +584,7 @@ function diffObjectNodeHandler(
       } else {
         resultNode = createVNodeFromElement(newChild);
         resultNode.ref = newChild.ref;
-        resultNode.belongClassVNode = newChild.belongClassVNode;
+        resultNode[BELONG_CLASS_VNODE_KEY] = newChild[BELONG_CLASS_VNODE_KEY];
       }
     }
   } else if (newChild.vtype === TYPE_PORTAL) {
diff --git a/libs/horizon/src/renderer/submit/LifeCycleHandler.ts b/libs/horizon/src/renderer/submit/LifeCycleHandler.ts
index 056f18f9..5d02368e 100644
--- a/libs/horizon/src/renderer/submit/LifeCycleHandler.ts
+++ b/libs/horizon/src/renderer/submit/LifeCycleHandler.ts
@@ -52,6 +52,7 @@ import {
 import { handleSubmitError } from '../ErrorHandler';
 import { travelVNodeTree, clearVNode, isDomVNode, getSiblingDom } from '../vnode/VNodeUtils';
 import { shouldAutoFocus } from '../../dom/utils/Common';
+import { BELONG_CLASS_VNODE_KEY } from '../vnode/VNode';
 
 function callComponentWillUnmount(vNode: VNode, instance: any) {
   try {
@@ -163,8 +164,8 @@ function handleRef(vNode: VNode, ref, val) {
     } else if (refType === 'object') {
       (<RefType>ref).current = val;
     } else {
-      if (vNode.belongClassVNode && vNode.belongClassVNode.realNode) {
-        vNode.belongClassVNode.realNode.refs[String(ref)] = val;
+      if (vNode[BELONG_CLASS_VNODE_KEY] && vNode[BELONG_CLASS_VNODE_KEY].realNode) {
+        vNode[BELONG_CLASS_VNODE_KEY].realNode.refs[String(ref)] = val;
       }
     }
   }
diff --git a/libs/horizon/src/renderer/vnode/VNode.ts b/libs/horizon/src/renderer/vnode/VNode.ts
index 40ba0554..4911f887 100644
--- a/libs/horizon/src/renderer/vnode/VNode.ts
+++ b/libs/horizon/src/renderer/vnode/VNode.ts
@@ -38,6 +38,8 @@ import type { Hook } from '../hooks/HookType';
 import { InitFlag } from './VNodeFlags';
 import { Observer } from '../../horizonx/proxy/Observer';
 
+export const BELONG_CLASS_VNODE_KEY = Symbol('belongClassVNode');
+
 export class VNode {
   tag: VNodeTag;
   key: string | null; // 唯一标识符
@@ -97,7 +99,7 @@ export class VNode {
   toUpdateNodes: Set<VNode> | null; // 保存要更新的节点
   delegatedEvents: Set<string>;
 
-  belongClassVNode: VNode | null = null; // 记录JSXElement所属class vNode，处理ref的时候使用
+  [BELONG_CLASS_VNODE_KEY]: VNode | null = null; // 记录JSXElement所属class vNode，处理ref的时候使用
 
   // 状态管理器HorizonX使用
   isStoreChange: boolean;
diff --git a/libs/horizon/src/renderer/vnode/VNodeUtils.ts b/libs/horizon/src/renderer/vnode/VNodeUtils.ts
index d9bb0f50..b195f886 100644
--- a/libs/horizon/src/renderer/vnode/VNodeUtils.ts
+++ b/libs/horizon/src/renderer/vnode/VNodeUtils.ts
@@ -20,9 +20,9 @@
 import type {VNode} from '../Types';
 
 import {DomComponent, DomPortal, DomText, TreeRoot} from './VNodeTags';
-import {isComment} from '../../dom/utils/Common';
 import {getNearestVNode} from '../../dom/DOMInternalKeys';
 import {Addition, InitFlag} from './VNodeFlags';
+import { BELONG_CLASS_VNODE_KEY } from './VNode';
 
 export function travelChildren(
   beginVNode: VNode | null,
@@ -124,7 +124,7 @@ export function clearVNode(vNode: VNode) {
 
   vNode.toUpdateNodes = null;
 
-  vNode.belongClassVNode = null;
+  vNode[BELONG_CLASS_VNODE_KEY] = null;
   if (window.__HORIZON_DEV_HOOK__) {
     const hook = window.__HORIZON_DEV_HOOK__;
     hook.deleteVNode(vNode);
diff --git a/scripts/__tests__/ComponentTest/JsxElement.test.js b/scripts/__tests__/ComponentTest/JsxElement.test.js
new file mode 100644
index 00000000..8794fbbf
--- /dev/null
+++ b/scripts/__tests__/ComponentTest/JsxElement.test.js
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2020 Huawei Technologies Co.,Ltd.
+ *
+ * openGauss is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *
+ *          http://license.coscl.org.cn/MulanPSL2
+ *
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+import * as Horizon from '@cloudsop/horizon/index.ts';
+
+describe('JSX Element test', () => {
+  it('symbol attribute prevent cloneDeep unlimited loop', function () {
+
+    function cloneDeep(obj) {
+      const result = {};
+      Object.keys(obj).forEach(key => {
+        if (obj[key] && typeof obj[key] === 'object') {
+          result[key] = cloneDeep(obj[key]);
+        } else {
+          result[key] = obj[key];
+        }
+      })
+      return result;
+    }
+    class Demo extends Horizon.Component {
+      render() {
+        return (
+          <div>
+            hello
+          </div>
+        );
+      }
+    }
+
+    const ele = Horizon.createElement(Demo);
+    const copy = cloneDeep(ele);
+    expect(copy.vtype).toEqual(ele.vtype);
+    expect(Object.getOwnPropertySymbols(copy).length).toEqual(0);
+  });
+});
+