diff --git a/libs/horizon/src/dom/DOMExternal.ts b/libs/horizon/src/dom/DOMExternal.ts
index 237e8de2..02742120 100644
--- a/libs/horizon/src/dom/DOMExternal.ts
+++ b/libs/horizon/src/dom/DOMExternal.ts
@@ -10,30 +10,6 @@ import {findDOMByClassInst} from '../renderer/vnode/VNodeUtils';
 import {TreeRoot} from '../renderer/vnode/VNodeTags';
 import {Callback} from '../renderer/UpdateHandler';
 
-function executeRender(
-  children: any,
-  container: Container,
-  callback?: Callback,
-) {
-  let treeRoot = container._treeRoot;
-
-  if (!treeRoot) {
-    treeRoot = createRoot(children, container, callback);
-  } else { // container被render过
-    if (typeof callback === 'function') {
-      const cb = callback;
-      callback = function () {
-        const instance = getFirstCustomDom(treeRoot);
-        cb.call(instance);
-      };
-    }
-    // 执行更新操作
-    startUpdate(children, treeRoot, callback);
-  }
-
-  return getFirstCustomDom(treeRoot);
-}
-
 function createRoot(children: any, container: Container, callback?: Callback) {
   // 清空容器
   let child = container.lastChild;
@@ -66,8 +42,32 @@ function createRoot(children: any, container: Container, callback?: Callback) {
   return treeRoot;
 }
 
+function executeRender(
+  children: any,
+  container: Container,
+  callback?: Callback,
+) {
+  let treeRoot = container._treeRoot;
+
+  if (!treeRoot) {
+    treeRoot = createRoot(children, container, callback);
+  } else { // container被render过
+    if (typeof callback === 'function') {
+      const cb = callback;
+      callback = function () {
+        const instance = getFirstCustomDom(treeRoot);
+        cb.call(instance);
+      };
+    }
+    // 执行更新操作
+    startUpdate(children, treeRoot, callback);
+  }
+
+  return getFirstCustomDom(treeRoot);
+}
+
 function findDOMNode(domOrEle: Element): null | Element | Text {
-  if (domOrEle == null) {
+  if (!domOrEle) {
     return null;
   }
 
diff --git a/libs/horizon/src/dom/DOMInternalKeys.ts b/libs/horizon/src/dom/DOMInternalKeys.ts
index dec6fed1..55621aae 100644
--- a/libs/horizon/src/dom/DOMInternalKeys.ts
+++ b/libs/horizon/src/dom/DOMInternalKeys.ts
@@ -72,7 +72,7 @@ export function getNearestVNode(dom: Node): null | VNode {
 }
 
 // 获取 vNode 上的属性相关信息
-export function getVNodeProps(dom: Element | Text): Props {
+export function getVNodeProps(dom: Element | Text): Props | null{
   return dom[internalKeys.props] || null;
 }
 
@@ -93,7 +93,8 @@ export function getEventListeners(dom: EventTarget): Set<string> {
 export function getEventToListenerMap(target: EventTarget): Map<string, EventListener> {
   let eventsMap = target[internalKeys.nonDelegatedEvents];
   if (!eventsMap) {
-    eventsMap = target[internalKeys.nonDelegatedEvents] = new Map();
+    eventsMap = new Map();
+    target[internalKeys.nonDelegatedEvents] = new Map();
   }
   return eventsMap;
 }
diff --git a/libs/horizon/src/dom/DOMOperator.ts b/libs/horizon/src/dom/DOMOperator.ts
index b475375a..9033a028 100644
--- a/libs/horizon/src/dom/DOMOperator.ts
+++ b/libs/horizon/src/dom/DOMOperator.ts
@@ -5,13 +5,13 @@ import {
 import {
   createDom,
 } from './utils/DomCreator';
-import {getSelectionInfo, resetSelectionRange, selectionData} from './SelectionRangeHandler';
-import {isElement, isComment, isDocument, isDocumentFragment, getDomTag, shouldAutoFocus} from './utils/Common';
-import {NSS} from './utils/DomCreator';
-import {adjustStyleValue} from './DOMPropertiesHandler/StyleHandler';
+import { getSelectionInfo, resetSelectionRange, selectionData } from './SelectionRangeHandler';
+import { isElement, isComment, isDocument, isDocumentFragment, getDomTag, shouldAutoFocus } from './utils/Common';
+import { NSS } from './utils/DomCreator';
+import { adjustStyleValue } from './DOMPropertiesHandler/StyleHandler';
 
-import {listenDelegatedEvents} from '../event/EventBinding';
-import type {VNode} from '../renderer/Types';
+import { listenDelegatedEvents } from '../event/EventBinding';
+import type { VNode } from '../renderer/Types';
 import {
   setInitValue,
   getPropsWithoutValue,
@@ -21,10 +21,10 @@ import {
   compareProps,
   setDomProps, updateDomProps
 } from './DOMPropertiesHandler/DOMPropertiesHandler';
-import {isNativeElement, validateProps} from './validators/ValidateProps';
-import {watchValueChange} from './valueHandler/ValueChangeHandler';
-import {DomComponent, DomText} from '../renderer/vnode/VNodeTags';
-import {updateCommonProp} from './DOMPropertiesHandler/UpdateCommonProp';
+import { isNativeElement, validateProps } from './validators/ValidateProps';
+import { watchValueChange } from './valueHandler/ValueChangeHandler';
+import { DomComponent, DomText } from '../renderer/vnode/VNodeTags';
+import { updateCommonProp } from './DOMPropertiesHandler/UpdateCommonProp';
 
 export type Props = {
   autoFocus?: boolean;
@@ -55,13 +55,7 @@ function getChildNS(parentNS: string | null, tagName: string): string {
 
 // 获取容器
 export function getNSCtx(dom: Container, parentNS: string, type: string): string {
-  let namespace;
-  if (dom) {
-    namespace = getChildNS(dom.namespaceURI ?? null, dom.nodeName);
-  } else {
-    namespace = getChildNS(parentNS, type);
-  }
-  return namespace;
+  return dom ? getChildNS(dom.namespaceURI ?? null, dom.nodeName) : getChildNS(parentNS, type);
 }
 
 export function prepareForSubmit(): void {
@@ -156,7 +150,7 @@ export function newTextDom(
 // 提交vNode的类型为Component或者Text的更新
 export function submitDomUpdate(tag: string, vNode: VNode) {
   const newProps = vNode.props;
-  const element: Element = vNode.realNode;
+  const element: Element | null = vNode.realNode;
 
   if (tag === DomComponent) {
     // DomComponent类型
@@ -179,8 +173,10 @@ export function submitDomUpdate(tag: string, vNode: VNode) {
       }
     }
   } else if (tag === DomText) {
-    // text类型
-    element.textContent = newProps;
+    if (element != null) {
+      // text类型
+      element.textContent = newProps;
+    }
   }
 }
 
diff --git a/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts b/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts
index 3d5f7d36..5016d811 100644
--- a/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts
+++ b/libs/horizon/src/dom/DOMPropertiesHandler/DOMPropertiesHandler.ts
@@ -8,6 +8,27 @@ import {
 } from '../../event/EventBinding';
 import { isEventProp, isNativeElement } from '../validators/ValidateProps';
 
+function updateOneProp(dom, propName, propVal, isNativeTag, isInit?: boolean) {
+  if (propName === 'style') {
+    setStyles(dom, propVal);
+  } else if (propName === 'dangerouslySetInnerHTML') {
+    dom.innerHTML = propVal.__html;
+  } else if (propName === 'children') { // 只处理纯文本子节点，其他children在VNode树中处理
+    if (typeof propVal === 'string' || typeof propVal === 'number') {
+      dom.textContent = String(propVal);
+    }
+  } else if (isEventProp(propName)) {
+    // 事件监听属性处理
+    if (!allDelegatedHorizonEvents.has(propName)) {
+      listenNonDelegatedEvent(propName, dom, propVal);
+    }
+  } else {
+    if (!isInit || (isInit && propVal != null)) {
+      updateCommonProp(dom, propName, propVal, isNativeTag);
+    }
+  }
+}
+
 // 初始化DOM属性
 export function setDomProps(
   tagName: string,
@@ -38,27 +59,6 @@ export function updateDomProps(
   }
 }
 
-function updateOneProp(dom, propName, propVal, isNativeTag, isInit?: boolean) {
-  if (propName === 'style') {
-    setStyles(dom, propVal);
-  } else if (propName === 'dangerouslySetInnerHTML') {
-    dom.innerHTML = propVal.__html;
-  } else if (propName === 'children') { // 只处理纯文本子节点，其他children在VNode树中处理
-    if (typeof propVal === 'string' || typeof propVal === 'number') {
-      dom.textContent = String(propVal);
-    }
-  } else if (isEventProp(propName)) {
-    // 事件监听属性处理
-    if (!allDelegatedHorizonEvents.has(propName)) {
-      listenNonDelegatedEvent(propName, dom, propVal);
-    }
-  } else {
-    if (!isInit || (isInit && propVal != null)) {
-      updateCommonProp(dom, propName, propVal, isNativeTag);
-    }
-  }
-}
-
 // 找出两个 DOM 属性的差别，生成需要更新的属性集合
 export function compareProps(
   oldProps: Object,
diff --git a/libs/horizon/src/event/HorizonEventMain.ts b/libs/horizon/src/event/HorizonEventMain.ts
index 55f34969..ad3dffda 100644
--- a/libs/horizon/src/event/HorizonEventMain.ts
+++ b/libs/horizon/src/event/HorizonEventMain.ts
@@ -122,7 +122,9 @@ function getProcessListenersFacade(
       ));
     }
 
-    if (nativeEvtName === 'compositionend' || nativeEvtName === 'compositionstart' || nativeEvtName === 'compositionupdate') {
+    if (nativeEvtName === 'compositionend' ||
+        nativeEvtName === 'compositionstart' ||
+        nativeEvtName === 'compositionupdate') {
       processingListenerList = processingListenerList.concat(getCompositionListeners(
         nativeEvtName,
         nativeEvent,
@@ -183,13 +185,14 @@ export function handleEventMain(
 
   // 有事件正在执行，同步执行事件
   if (isInEventsExecution) {
-    return triggerHorizonEvents(nativeEvtName, isCapture, nativeEvent, rootVNode);
+    triggerHorizonEvents(nativeEvtName, isCapture, nativeEvent, rootVNode);
+    return;
   }
 
   // 没有事件在执行，经过调度再执行事件
   isInEventsExecution = true;
   try {
-    return asyncUpdates(() =>
+    asyncUpdates(() =>
       triggerHorizonEvents(
         nativeEvtName,
         isCapture,
diff --git a/libs/horizon/src/event/WrapperListener.ts b/libs/horizon/src/event/WrapperListener.ts
index 9c73299c..ba5d309b 100644
--- a/libs/horizon/src/event/WrapperListener.ts
+++ b/libs/horizon/src/event/WrapperListener.ts
@@ -5,15 +5,6 @@ import {handleEventMain} from './HorizonEventMain';
 import {runDiscreteUpdates} from '../renderer/Renderer';
 import {getEventTarget} from './utils';
 
-// 生成委托事件的监听方法
-export function createCustomEventListener(
-  target: EventTarget,
-  nativeEvtName: string,
-  isCapture: boolean,
-): EventListener {
-  return triggerDelegatedEvent.bind(null, nativeEvtName, isCapture, target);
-}
-
 // 触发委托事件
 function triggerDelegatedEvent(
   nativeEvtName: string,
@@ -39,3 +30,12 @@ function triggerDelegatedEvent(
   }
   handleEventMain(nativeEvtName, isCapture, nativeEvent, targetVNode, targetDom);
 }
+
+// 生成委托事件的监听方法
+export function createCustomEventListener(
+  target: EventTarget,
+  nativeEvtName: string,
+  isCapture: boolean,
+): EventListener {
+  return triggerDelegatedEvent.bind(null, nativeEvtName, isCapture, target);
+}
diff --git a/libs/horizon/src/event/customEvents/CustomBaseEvent.ts b/libs/horizon/src/event/customEvents/CustomBaseEvent.ts
index d4595d31..5ea40d96 100644
--- a/libs/horizon/src/event/customEvents/CustomBaseEvent.ts
+++ b/libs/horizon/src/event/customEvents/CustomBaseEvent.ts
@@ -4,6 +4,48 @@
 
 import {VNode} from '../../renderer/Types';
 
+// 从原生事件中复制属性到自定义事件中
+function extendAttribute(target, source) {
+  const attributes = [
+    // AnimationEvent
+    'animationName', 'elapsedTime', 'pseudoElement',
+    // CompositionEvent、InputEvent
+    'data',
+    // DragEvent
+    'dataTransfer',
+    // FocusEvent
+    'relatedTarget',
+    // KeyboardEvent
+    'key', 'keyCode', 'charCode', 'code', 'location', 'ctrlKey', 'shiftKey',
+    'altKey', 'metaKey', 'repeat', 'locale', 'getModifierState', 'clipboardData',
+    // MouseEvent
+    'button', 'buttons', 'clientX', 'clientY', 'movementX', 'movementY',
+    'pageX', 'pageY', 'screenX', 'screenY', 'currentTarget',
+    // PointerEvent
+    'pointerId', 'width', 'height', 'pressure', 'tangentialPressure',
+    'tiltX', 'tiltY', 'twist', 'pointerType', 'isPrimary',
+    // TouchEvent
+    'touches', 'targetTouches', 'changedTouches',
+    // TransitionEvent
+    'propertyName',
+    // UIEvent
+    'view', 'detail',
+    // WheelEvent
+    'deltaX', 'deltaY', 'deltaZ', 'deltaMode',
+  ];
+
+  attributes.forEach(attr => {
+    if (typeof source[attr] !== 'undefined') {
+      if (typeof source[attr] === 'function') {
+        target[attr] = function() {
+          return source[attr].apply(source, arguments);
+        };
+      } else {
+        target[attr] = source[attr];
+      }
+    }
+  })
+}
 export class CustomBaseEvent {
 
   data: string;
@@ -79,46 +121,3 @@ export class CustomBaseEvent {
     this.isPropagationStopped = () => true;
   }
 }
-
-// 从原生事件中复制属性到自定义事件中
-function extendAttribute(target, source) {
-  const attributes = [
-    // AnimationEvent
-    'animationName', 'elapsedTime', 'pseudoElement',
-    // CompositionEvent、InputEvent
-    'data',
-    // DragEvent
-    'dataTransfer',
-    // FocusEvent
-    'relatedTarget',
-    // KeyboardEvent
-    'key', 'keyCode', 'charCode', 'code', 'location', 'ctrlKey', 'shiftKey',
-    'altKey', 'metaKey', 'repeat', 'locale', 'getModifierState', 'clipboardData',
-    // MouseEvent
-    'button', 'buttons', 'clientX', 'clientY', 'movementX', 'movementY',
-    'pageX', 'pageY', 'screenX', 'screenY', 'currentTarget',
-    // PointerEvent
-    'pointerId', 'width', 'height', 'pressure', 'tangentialPressure',
-    'tiltX', 'tiltY', 'twist', 'pointerType', 'isPrimary',
-    // TouchEvent
-    'touches', 'targetTouches', 'changedTouches',
-    // TransitionEvent
-    'propertyName',
-    // UIEvent
-    'view', 'detail',
-    // WheelEvent
-    'deltaX', 'deltaY', 'deltaZ', 'deltaMode',
-  ];
-
-  attributes.forEach(attr => {
-    if (typeof source[attr] !== 'undefined') {
-      if (typeof source[attr] === 'function') {
-        target[attr] = function() {
-          return source[attr].apply(source, arguments);
-        };
-      } else {
-        target[attr] = source[attr];
-      }
-    }
-  })
-}
diff --git a/libs/horizon/src/event/customEvents/CustomKeyboardEvent.ts b/libs/horizon/src/event/customEvents/CustomKeyboardEvent.ts
index 33c6d13c..f4d0ae89 100644
--- a/libs/horizon/src/event/customEvents/CustomKeyboardEvent.ts
+++ b/libs/horizon/src/event/customEvents/CustomKeyboardEvent.ts
@@ -72,7 +72,7 @@ export class CustomKeyboardEvent extends CustomBaseEvent {
     super(customEvtName, nativeEvtName, nativeEvt, vNode, target);
     this.key = getKey(nativeEvt);
     this.charCode = nativeEvtName === 'keypress' ? uniqueCharCode(nativeEvt) : 0;
-    this.keyCode = (nativeEvtName === 'keydown' || nativeEvtName === 'keyup') ? nativeEvt.keyCode : 0;
+    this.keyCode = nativeEvtName === 'keydown' || nativeEvtName === 'keyup' ? nativeEvt.keyCode : 0;
     this.which = this.charCode || this.keyCode;
   }
 }
diff --git a/libs/horizon/src/event/simulatedEvtHandler/BeforeInputEventHandler.ts b/libs/horizon/src/event/simulatedEvtHandler/BeforeInputEventHandler.ts
index 833db40a..1a18ba27 100644
--- a/libs/horizon/src/event/simulatedEvtHandler/BeforeInputEventHandler.ts
+++ b/libs/horizon/src/event/simulatedEvtHandler/BeforeInputEventHandler.ts
@@ -9,7 +9,7 @@ const SPACE_CHAR = String.fromCharCode(CHAR_CODE_SPACE);
 function getInputCharsByNative(
   eventName: string,
   nativeEvent: any,
-): string | void {
+): string | null | void {
   if (eventName === 'compositionend') {
     return (nativeEvent.detail && nativeEvent.detail.data) || null;
   }
diff --git a/libs/horizon/src/event/simulatedEvtHandler/SelectionEventHandler.ts b/libs/horizon/src/event/simulatedEvtHandler/SelectionEventHandler.ts
index 81bc1fcc..87724137 100644
--- a/libs/horizon/src/event/simulatedEvtHandler/SelectionEventHandler.ts
+++ b/libs/horizon/src/event/simulatedEvtHandler/SelectionEventHandler.ts
@@ -13,7 +13,7 @@ const horizonEventName = 'onSelect'
 
 let currentElement = null;
 let currentVNode = null;
-let lastSelection = null;
+let lastSelection: Selection | null = null;
 
 function initTargetCache(dom, vNode) {
   if (isTextInputElement(dom) || dom.contentEditable === 'true') {
@@ -85,7 +85,7 @@ export function getListeners(
   target: null | EventTarget,
 ): ProcessingListenerList {
   const targetNode = vNode ? getDom(vNode) : window;
-  let eventUnitList = [];
+  let eventUnitList: ProcessingListenerList = [];
   switch (name) {
     case 'focusin':
       initTargetCache(targetNode, vNode);
diff --git a/libs/horizon/src/renderer/render/IncompleteClassComponent.ts b/libs/horizon/src/renderer/render/IncompleteClassComponent.ts
index 7de50b1a..2c50ed18 100644
--- a/libs/horizon/src/renderer/render/IncompleteClassComponent.ts
+++ b/libs/horizon/src/renderer/render/IncompleteClassComponent.ts
@@ -10,7 +10,18 @@ import {
   cacheOldCtx,
 } from '../components/context/CompatibleContext';
 
-export function captureRender(processing: VNode): Array<VNode> | null {
+function captureIncompleteClassComponent(processing, Component, nextProps) {
+  processing.tag = ClassComponent;
+
+  const hasOldContext = isOldProvider(Component);
+  cacheOldCtx(processing, hasOldContext);
+
+  resetDepContexts(processing);
+
+  return getIncompleteClassComponent(Component, processing, nextProps);
+}
+
+export function captureRender(processing: VNode): VNode | null {
   const Component = processing.type;
   const unresolvedProps = processing.props;
   const resolvedProps =
@@ -28,14 +39,3 @@ export function bubbleRender(processing: VNode) {
     resetOldCtx(processing);
   }
 }
-
-function captureIncompleteClassComponent(processing, Component, nextProps) {
-  processing.tag = ClassComponent;
-
-  const hasOldContext = isOldProvider(Component);
-  cacheOldCtx(processing, hasOldContext);
-
-  resetDepContexts(processing);
-
-  return getIncompleteClassComponent(Component, processing, nextProps);
-}
diff --git a/libs/horizon/src/renderer/render/LazyComponent.ts b/libs/horizon/src/renderer/render/LazyComponent.ts
index f3dcc954..5277c1d1 100644
--- a/libs/horizon/src/renderer/render/LazyComponent.ts
+++ b/libs/horizon/src/renderer/render/LazyComponent.ts
@@ -13,10 +13,6 @@ import { captureFunctionComponent } from './FunctionComponent';
 import { captureClassComponent } from './ClassComponent';
 import { captureMemoComponent } from './MemoComponent';
 
-export function captureRender(processing: VNode, shouldUpdate: boolean): VNode | null {
-  return captureLazyComponent(processing, processing.type, shouldUpdate);
-}
-
 export function bubbleRender() { }
 
 const LazyRendererMap = {
@@ -26,6 +22,20 @@ const LazyRendererMap = {
   [MemoComponent]: captureMemoComponent,
 };
 
+export function mergeDefaultProps(Component: any, props: object): object {
+  if (Component && Component.defaultProps) {
+    const clonedProps = { ...props };
+    const defaultProps = Component.defaultProps;
+    Object.keys(defaultProps).forEach(key => {
+      if (clonedProps[key] === undefined) {
+        clonedProps[key] = defaultProps[key];
+      }
+    });
+    return clonedProps;
+  }
+  return props;
+}
+
 function captureLazyComponent(
   processing,
   lazyComponent,
@@ -43,7 +53,8 @@ function captureLazyComponent(
   // 加载得到的Component存在type中
   processing.type = Component;
 
-  const lazyVNodeTag = processing.tag = getLazyVNodeTag(Component);
+  const lazyVNodeTag = getLazyVNodeTag(Component);
+  processing.tag = getLazyVNodeTag(Component);
   const lazyVNodeProps = mergeDefaultProps(Component, processing.props);
 
   const lazyRender = LazyRendererMap[lazyVNodeTag];
@@ -68,16 +79,6 @@ function captureLazyComponent(
   }
 }
 
-export function mergeDefaultProps(Component: any, props: object): object {
-  if (Component && Component.defaultProps) {
-    const clonedProps = { ...props };
-    const defaultProps = Component.defaultProps;
-    Object.keys(defaultProps).forEach(key => {
-      if (clonedProps[key] === undefined) {
-        clonedProps[key] = defaultProps[key];
-      }
-    });
-    return clonedProps;
-  }
-  return props;
+export function captureRender(processing: VNode, shouldUpdate: boolean): VNode | null {
+  return captureLazyComponent(processing, processing.type, shouldUpdate);
 }
diff --git a/libs/horizon/src/renderer/render/SuspenseComponent.ts b/libs/horizon/src/renderer/render/SuspenseComponent.ts
index d0cb6f9e..200c0c3d 100644
--- a/libs/horizon/src/renderer/render/SuspenseComponent.ts
+++ b/libs/horizon/src/renderer/render/SuspenseComponent.ts
@@ -19,107 +19,6 @@ export enum SuspenseChildStatus {
   ShowFallback = 'showFallback',
 }
 
-export function captureRender(processing: VNode, shouldUpdate: boolean): Array<VNode> | VNode | null {
-  if (
-    !processing.isCreated &&
-    processing.oldProps === processing.props &&
-    !getContextChangeCtx() &&
-    !shouldUpdate
-  ) {
-    if (processing.suspenseChildStatus === SuspenseChildStatus.ShowFallback) {
-      // 当显示fallback时，suspense的子组件要更新
-      return updateFallback(processing);
-    }
-    return onlyUpdateChildVNodes(processing);
-  }
-
-  return captureSuspenseComponent(processing);
-}
-
-function updateFallback(processing: VNode): Array<VNode> | VNode | null {
-  const childFragment: VNode = processing.child;
-
-  if (childFragment.childShouldUpdate) {
-    if (processing.promiseResolve) {
-      // promise已完成，展示promise返回的新节点
-      return captureSuspenseComponent(processing);
-    } else {
-      // promise未完成，继续显示fallback，不需要继续刷新子节点
-      const fallbackFragment: VNode = processing.child.next;
-      childFragment.childShouldUpdate = false;
-      fallbackFragment.childShouldUpdate = false;
-      return null;
-    }
-  } else {
-    const children = onlyUpdateChildVNodes(processing);
-
-    if (children !== null) {
-      // child不需要更新，跳过child处理fallback
-      return children[1];
-    } else {
-      return null;
-    }
-  }
-}
-
-export function bubbleRender(processing: VNode) {
-  if (processing.suspenseChildStatus === SuspenseChildStatus.ShowFallback
-    || (!processing.isCreated && processing.oldSuspenseChildStatus === SuspenseChildStatus.ShowFallback)
-  ) {
-    FlagUtils.markUpdate(processing);
-  }
-
-  return null;
-}
-
-export function captureSuspenseComponent(processing: VNode) {
-  const nextProps = processing.props;
-
-  // suspense被捕获后需要展示fallback
-  const showFallback = processing.suspenseDidCapture;
-
-  if (showFallback) {
-    processing.suspenseDidCapture = false;
-    const nextFallbackChildren = nextProps.fallback;
-    return createFallback(processing, nextFallbackChildren);
-  } else {
-    const newChildren = nextProps.children;
-    return createSuspenseChildren(processing, newChildren);
-  }
-}
-
-// 创建子节点
-function createSuspenseChildren(processing: VNode, newChildren) {
-  let childFragment: VNode;
-  if (!processing.isCreated) {
-    const oldChildFragment: VNode = processing.child;
-    const oldFallbackFragment: VNode | null = oldChildFragment.next;
-
-    childFragment = updateVNode(oldChildFragment);
-    childFragment.next = null;
-    // 将Suspense新的子参数传给子Fragment
-    childFragment.props = processing.props.children;
-    childFragment.shouldUpdate = true;
-
-    // 删除fallback
-    if (oldFallbackFragment !== null) {
-      FlagUtils.setDeletion(oldFallbackFragment);
-      processing.dirtyNodes = [oldFallbackFragment];
-    }
-    // SuspenseComponent 中使用
-    processing.suspenseChildStatus = SuspenseChildStatus.ShowChild;
-  } else {
-    childFragment = createVNode(Fragment, null, newChildren);
-  }
-
-  childFragment.parent = processing;
-  childFragment.cIndex = 0;
-  updateVNodePath(childFragment);
-  processing.child = childFragment;
-  processing.promiseResolve = false;
-  return processing.child;
-}
-
 // 创建fallback子节点
 function createFallback(processing: VNode, fallbackChildren) {
   const childFragment: VNode = processing.child;
@@ -152,13 +51,118 @@ function createFallback(processing: VNode, fallbackChildren) {
   return fallbackFragment;
 }
 
+// 创建子节点
+function createSuspenseChildren(processing: VNode, newChildren) {
+  let childFragment: VNode;
+  if (!processing.isCreated) {
+    const oldChildFragment: VNode = processing.child;
+    const oldFallbackFragment: VNode | null = oldChildFragment.next;
+
+    childFragment = updateVNode(oldChildFragment);
+    childFragment.next = null;
+    // 将Suspense新的子参数传给子Fragment
+    childFragment.props = processing.props.children;
+    childFragment.shouldUpdate = true;
+
+    // 删除fallback
+    if (oldFallbackFragment !== null) {
+      FlagUtils.setDeletion(oldFallbackFragment);
+      processing.dirtyNodes = [oldFallbackFragment];
+    }
+    // SuspenseComponent 中使用
+    processing.suspenseChildStatus = SuspenseChildStatus.ShowChild;
+  } else {
+    childFragment = createVNode(Fragment, null, newChildren);
+  }
+
+  childFragment.parent = processing;
+  childFragment.cIndex = 0;
+  updateVNodePath(childFragment);
+  processing.child = childFragment;
+  processing.promiseResolve = false;
+  return processing.child;
+}
+
+export function captureSuspenseComponent(processing: VNode) {
+  const nextProps = processing.props;
+
+  // suspense被捕获后需要展示fallback
+  const showFallback = processing.suspenseDidCapture;
+
+  if (showFallback) {
+    processing.suspenseDidCapture = false;
+    const nextFallbackChildren = nextProps.fallback;
+    return createFallback(processing, nextFallbackChildren);
+  } else {
+    const newChildren = nextProps.children;
+    return createSuspenseChildren(processing, newChildren);
+  }
+}
+
+function updateFallback(processing: VNode): Array<VNode> | VNode | null {
+  const childFragment: VNode | null= processing.child;
+
+  if (childFragment?.childShouldUpdate) {
+    if (processing.promiseResolve) {
+      // promise已完成，展示promise返回的新节点
+      return captureSuspenseComponent(processing);
+    } else {
+      // promise未完成，继续显示fallback，不需要继续刷新子节点
+      const fallbackFragment: VNode = processing.child.next;
+      childFragment.childShouldUpdate = false;
+      fallbackFragment.childShouldUpdate = false;
+      return null;
+    }
+  } else {
+    const children = onlyUpdateChildVNodes(processing);
+
+    if (children !== null) {
+      // child不需要更新，跳过child处理fallback
+      return children[1];
+    } else {
+      return null;
+    }
+  }
+}
+
+export function captureRender(processing: VNode, shouldUpdate: boolean): Array<VNode> | VNode | null {
+  if (
+    !processing.isCreated &&
+    processing.oldProps === processing.props &&
+    !getContextChangeCtx() &&
+    !shouldUpdate
+  ) {
+    if (processing.suspenseChildStatus === SuspenseChildStatus.ShowFallback) {
+      // 当显示fallback时，suspense的子组件要更新
+      return updateFallback(processing);
+    }
+    return onlyUpdateChildVNodes(processing);
+  }
+
+  return captureSuspenseComponent(processing);
+}
+
+export function bubbleRender(processing: VNode) {
+  if (processing.suspenseChildStatus === SuspenseChildStatus.ShowFallback
+    || (!processing.isCreated && processing.oldSuspenseChildStatus === SuspenseChildStatus.ShowFallback)
+  ) {
+    FlagUtils.markUpdate(processing);
+  }
+
+  return null;
+}
+
+function canCapturePromise(vNode: VNode | null): boolean {
+  return vNode?.suspenseChildStatus !== SuspenseChildStatus.ShowFallback && vNode?.props.fallback !== undefined;
+}
+
 // 处理Suspense子组件抛出的promise
-export function handleSuspenseChildThrowError(parent: VNode, processing: VNode, error: any): boolean {
+export function handleSuspenseChildThrowError(parent: VNode | null, processing: VNode, error: any): boolean {
   let vNode = parent;
 
   // 向上找到最近的不在fallback状态的Suspense，并触发重新渲染
   do {
-    if (vNode.tag === SuspenseComponent && canCapturePromise(vNode)) {
+    if (vNode?.tag === SuspenseComponent && canCapturePromise(vNode)) {
       if (vNode.suspensePromises === null) {
         vNode.suspensePromises = new Set();
       }
@@ -196,36 +200,8 @@ export function handleSuspenseChildThrowError(parent: VNode, processing: VNode,
   return false;
 }
 
-function canCapturePromise(vNode: VNode): boolean {
-  return vNode.suspenseChildStatus !== SuspenseChildStatus.ShowFallback && vNode.props.fallback !== undefined;
-}
-
 const PossiblyWeakSet = typeof WeakSet === 'function' ? WeakSet : Set;
 
-// 对于每个promise，添加一个侦听器，以便当它resolve时，重新渲染
-export function listenToPromise(suspenseVNode: VNode) {
-  const promises: Set<PromiseType<any>> | null = suspenseVNode.suspensePromises;
-  if (promises !== null) {
-    suspenseVNode.suspensePromises = null;
-
-    // 记录已经监听的 promise
-    let promiseCache = suspenseVNode.realNode;
-    if (promiseCache === null) {
-      // @ts-ignore
-      promiseCache = suspenseVNode.realNode = new PossiblyWeakSet();
-    }
-
-    promises.forEach(promise => {
-      const resole = resolvePromise.bind(null, suspenseVNode, promise);
-      if (!promiseCache.has(promise)) {
-        promiseCache.add(promise);
-        // 监听promise
-        promise.then(resole, resole);
-      }
-    });
-  }
-}
-
 function resolvePromise(suspenseVNode: VNode, promise: PromiseType<any>) {
   const promiseCache = suspenseVNode.realNode;
   if (promiseCache !== null) {
@@ -238,4 +214,27 @@ function resolvePromise(suspenseVNode: VNode, promise: PromiseType<any>) {
   }
 }
 
+// 对于每个promise，添加一个侦听器，以便当它resolve时，重新渲染
+export function listenToPromise(suspenseVNode: VNode) {
+  const promises: Set<PromiseType<any>> | null = suspenseVNode.suspensePromises;
+  if (promises !== null) {
+    suspenseVNode.suspensePromises = null;
 
+    // 记录已经监听的 promise
+    let promiseCache = suspenseVNode.realNode;
+    if (promiseCache === null) {
+      // @ts-ignore
+      promiseCache = new PossiblyWeakSet();
+      suspenseVNode.realNode = new PossiblyWeakSet();
+    }
+
+    promises.forEach(promise => {
+      const resole = resolvePromise.bind(null, suspenseVNode, promise);
+      if (!promiseCache.has(promise)) {
+        promiseCache.add(promise);
+        // 监听promise
+        promise.then(resole, resole);
+      }
+    });
+  }
+}
diff --git a/libs/horizon/src/renderer/render/TreeRoot.ts b/libs/horizon/src/renderer/render/TreeRoot.ts
index 8b4f2026..c9f54646 100644
--- a/libs/horizon/src/renderer/render/TreeRoot.ts
+++ b/libs/horizon/src/renderer/render/TreeRoot.ts
@@ -6,10 +6,6 @@ import {resetNamespaceCtx, setNamespaceCtx} from '../ContextSaver';
 import {resetOldCtx} from '../components/context/CompatibleContext';
 import {onlyUpdateChildVNodes} from '../vnode/VNodeCreator';
 
-export function captureRender(processing: VNode): VNode | null {
-  return updateTreeRoot(processing);
-}
-
 export function bubbleRender(processing: VNode) {
   resetNamespaceCtx(processing);
   resetOldCtx(processing);
@@ -40,3 +36,7 @@ function updateTreeRoot(processing) {
   processing.child = createVNodeChildren(processing, newElement);
   return processing.child;
 }
+
+export function captureRender(processing: VNode): VNode | null {
+  return updateTreeRoot(processing);
+}
diff --git a/libs/horizon/src/renderer/render/class/ClassLifeCycleProcessor.ts b/libs/horizon/src/renderer/render/class/ClassLifeCycleProcessor.ts
index d6e21c2c..db796eb5 100644
--- a/libs/horizon/src/renderer/render/class/ClassLifeCycleProcessor.ts
+++ b/libs/horizon/src/renderer/render/class/ClassLifeCycleProcessor.ts
@@ -1,7 +1,7 @@
 import type { VNode } from '../../Types';
 import type { Callback } from '../../UpdateHandler';
 
-import {shallowCompare} from '../../utils/compare';
+import { shallowCompare } from '../../utils/compare';
 import {
   pushUpdate,
   newUpdate,
@@ -25,9 +25,11 @@ export function callDerivedStateFromProps(
     const newState = getDerivedStateFromProps(nextProps, oldState);
 
     // 组件未返回state,需要返回旧的preState
-    processing.state = newState === null || newState === undefined
-      ? oldState
-      : { ...oldState, ...newState };
+    if (newState) {
+      processing.state = { ...oldState, ...newState };
+      return;
+    }
+    processing.state = oldState;
   }
 }
 
@@ -40,7 +42,7 @@ function changeStateContent(type: UpdateState, content: object, callback: Callba
   if (type === UpdateState.Update || type === UpdateState.Override) {
     update.content = content;
   }
-  if (callback !== undefined && callback !== null) {
+  if (callback) {
     update.callback = callback;
   }