diff --git a/libs/horizon/src/renderer/GlobalVar.ts b/libs/horizon/src/renderer/GlobalVar.ts
index e7ea335c..44911e69 100644
--- a/libs/horizon/src/renderer/GlobalVar.ts
+++ b/libs/horizon/src/renderer/GlobalVar.ts
@@ -1,6 +1,6 @@
 import type {VNode} from './Types';
 
-// 当前处理的classVNode，用于inst.refs用法中的
+// 当前处理的classVNode，用于设置inst.refs
 let processingClassVNode: VNode | null = null;
 export function getProcessingClassVNode(): VNode | null {
   return processingClassVNode;
diff --git a/libs/horizon/src/renderer/TreeBuilder.ts b/libs/horizon/src/renderer/TreeBuilder.ts
index cf0bc5e3..3c9b729b 100644
--- a/libs/horizon/src/renderer/TreeBuilder.ts
+++ b/libs/horizon/src/renderer/TreeBuilder.ts
@@ -10,7 +10,7 @@ import { runAsyncEffects } from './submit/HookEffectHandler';
 import { handleRenderThrowError } from './ErrorHandler';
 import componentRenders from './render';
 import {
-  BuildCompleted, BuildErrored,
+  BuildCompleted,
   BuildFatalErrored,
   BuildInComplete, getBuildResult,
   getStartVNode,
@@ -37,12 +37,11 @@ import {
   updateShouldUpdateOfTree
 } from './vnode/VNodeShouldUpdate';
 
-// 当前运行的vNode节点
-let processing: VNode | null = null;
-
 // 不可恢复错误
 let unrecoverableErrorDuringBuild: any = null;
 
+// 当前运行的vNode节点
+let processing: VNode | null = null;
 export function setProcessing(vNode: VNode | null) {
   processing = vNode;
 }
@@ -65,7 +64,7 @@ function collectDirtyNodes(vNode: VNode, parent: VNode): void {
   }
 }
 
-// ============================== 向上递归 ==============================
+// ============================== 向上冒泡 ==============================
 
 // 尝试完成当前工作单元，然后移动到下一个兄弟工作单元。如果没有更多的同级，请返回父vNode。
 function bubbleVNode(vNode: VNode): void {
@@ -202,18 +201,18 @@ function buildVNodeTree(treeRoot: VNode) {
   changeMode(InRender, true);
 
   // 计算出开始节点
-  const startUpdateVNode = calcStartUpdateVNode(treeRoot);
+  const startVNode = calcStartUpdateVNode(treeRoot);
   // 缓存起来
-  setStartVNode(startUpdateVNode);
+  setStartVNode(startVNode);
 
   // 清空toUpdateNodes
   treeRoot.toUpdateNodes.clear();
 
-  if (startUpdateVNode.tag !== TreeRoot) { // 不是根节点
+  if (startVNode.tag !== TreeRoot) { // 不是根节点
     // 设置namespace，用于createElement
-    const parentObj = findDomParent(startUpdateVNode);
+    const parentObj = findDomParent(startVNode);
 
-    // 当在componentWillUnmount中调用setState，parent可能是null，因为startUpdateVNode会被clear
+    // 当在componentWillUnmount中调用setState，parent可能是null，因为startVNode会被clear
     if (parentObj !== null) {
       const domParent = parentObj.parent;
       resetNamespaceCtx(domParent);
@@ -221,20 +220,20 @@ function buildVNodeTree(treeRoot: VNode) {
     }
 
     // 恢复父节点的context
-    recoverParentsContextCtx(startUpdateVNode);
+    recoverParentsContextCtx(startVNode);
   }
 
   // 重置环境变量，为重新进行深度遍历做准备
-  resetProcessingVariables(startUpdateVNode);
+  resetProcessingVariables(startVNode);
 
-  do {
+  while (processing !== null) {
     try {
       while (processing !== null) {
         // 捕获创建 vNodes
         const next = captureVNode(processing);
 
         if (next === null) {
-          // 如果没有产生新的，那么就完成当前节点，向上遍历
+          // 如果没有子节点，那么就完成当前节点，开始冒泡
           bubbleVNode(processing);
         } else {
           processing = next;
@@ -242,14 +241,10 @@ function buildVNodeTree(treeRoot: VNode) {
       }
 
       setProcessingClassVNode(null);
-
-      break;
     } catch (thrownValue) {
       handleError(treeRoot, thrownValue);
     }
-  } while (true);
-
-  processing = null;
+  }
 
   setExecuteMode(preMode);
 }
@@ -314,12 +309,6 @@ export function launchUpdateFromVNode(vNode: VNode) {
   }
 }
 
-export function setBuildResultError() {
-  if (getBuildResult() !== BuildCompleted) {
-    setBuildResult(BuildErrored);
-  }
-}
-
 // ============================== HorizonDOM使用 ==============================
 export function runDiscreteUpdates() {
   if (checkMode(ByAsync) || checkMode(InRender)) {
diff --git a/libs/horizon/src/renderer/submit/HookEffectHandler.ts b/libs/horizon/src/renderer/submit/HookEffectHandler.ts
index 36344ff3..c66675ca 100644
--- a/libs/horizon/src/renderer/submit/HookEffectHandler.ts
+++ b/libs/horizon/src/renderer/submit/HookEffectHandler.ts
@@ -14,8 +14,6 @@ import {runAsync} from '../taskExecutor/TaskExecutor';
 import {
   copyExecuteMode, InRender, setExecuteMode,changeMode
 } from '../ExecuteMode';
-import {handleSubmitError} from '../ErrorHandler';
-import {clearDirtyNodes} from './Submit';
 import {EffectConstant} from '../hooks/EffectConstant';
 
 let hookEffects: Array<HookEffect | VNode> = [];
@@ -81,7 +79,7 @@ export function runAsyncEffects() {
       try {
         destroy();
       } catch (error) {
-        handleSubmitError(vNode, error);
+        // 不处理副作用阶段抛出的异常
       }
     }
   });
@@ -95,13 +93,10 @@ export function runAsyncEffects() {
 
       effect.removeEffect = create();
     } catch (error) {
-      handleSubmitError(vNode, error);
+      // 不处理副作用阶段抛出的异常
     }
   });
 
-  // 清理dirtyNodes
-  clearDirtyNodes(root.dirtyNodes);
-
   setExecuteMode(preMode);
 
   callRenderQueueImmediate();
diff --git a/libs/horizon/src/renderer/submit/Submit.ts b/libs/horizon/src/renderer/submit/Submit.ts
index b7eaa86c..fe1018c3 100644
--- a/libs/horizon/src/renderer/submit/Submit.ts
+++ b/libs/horizon/src/renderer/submit/Submit.ts
@@ -70,8 +70,6 @@ export function submitToRender(treeRoot) {
 
     // 记录root，说明这个root有副作用要执行
     setHookEffectRoot(treeRoot);
-  } else {
-    clearDirtyNodes(dirtyNodes);
   }
 
   // 统计root同步重渲染的次数，如果太多可能是无线循环
@@ -197,13 +195,3 @@ export function checkLoopingUpdateLimit() {
     );
   }
 }
-
-// 清理dirtyNodes
-export function clearDirtyNodes(dirtyNodes) {
-  dirtyNodes.forEach(node => {
-    if (node.flags.Deletion) {
-      node.realNode = null;
-      node.next = null;
-    }
-  });
-}
diff --git a/libs/horizon/src/renderer/vnode/VNodeFlags.ts b/libs/horizon/src/renderer/vnode/VNodeFlags.ts
index 494d93fa..48d0331d 100644
--- a/libs/horizon/src/renderer/vnode/VNodeFlags.ts
+++ b/libs/horizon/src/renderer/vnode/VNodeFlags.ts
@@ -41,8 +41,9 @@ export class FlagUtils {
   static hasAnyFlag(node: VNode) { // 有标志位
     const flags = node.flags;
     const arrLength = FlagArr.length;
-    for(let i = 0; i < arrLength; i++) {
-      const key = FlagArr[i];
+    let key;
+    for (let i = 0; i < arrLength; i++) {
+      key = FlagArr[i];
       if (flags[key]) {
         return true;
       }
@@ -92,7 +93,6 @@ export class FlagUtils {
   static markForceUpdate(node: VNode) {
     node.flags.ForceUpdate = true;
   }
-
   static markClear(node: VNode) {
     node.flags.Clear = true;
   }
diff --git a/libs/horizon/src/renderer/vnode/VNodeShouldUpdate.ts b/libs/horizon/src/renderer/vnode/VNodeShouldUpdate.ts
index 8dfe8c7e..72afb236 100644
--- a/libs/horizon/src/renderer/vnode/VNodeShouldUpdate.ts
+++ b/libs/horizon/src/renderer/vnode/VNodeShouldUpdate.ts
@@ -56,6 +56,7 @@ export function updateParentsChildShouldUpdate(vNode: VNode) {
   let isShouldUpdate = vNode.shouldUpdate || vNode.childShouldUpdate;
 
   if (isShouldUpdate) { // 开始节点是shouldUpdate或childShouldUpdate
+    // 更新从当前节点到根节点的childShouldUpdate为true
     setParentsChildShouldUpdate(node);
   } else {
     while (node !== null) {
diff --git a/libs/horizon/src/renderer/vnode/VNodeUtils.ts b/libs/horizon/src/renderer/vnode/VNodeUtils.ts
index 09ff6f0e..92407f1b 100644
--- a/libs/horizon/src/renderer/vnode/VNodeUtils.ts
+++ b/libs/horizon/src/renderer/vnode/VNodeUtils.ts
@@ -81,7 +81,6 @@ export function clearVNode(vNode: VNode) {
   vNode.next = null;
   vNode.depContexts = [];
   vNode.dirtyNodes = [];
-  vNode.oldProps = null;
   vNode.state = null;
   vNode.hooks = [];
   vNode.suspenseChildStatus = '';
@@ -91,7 +90,9 @@ export function clearVNode(vNode: VNode) {
   vNode.changeList = null;
   vNode.effectList = [];
   vNode.updates = null;
+  vNode.realNode = null;
 
+  vNode.oldProps = null;
   vNode.oldHooks = [];
   vNode.oldState = null;
   vNode.oldRef = null;