diff --git a/src/behaviortree/BT.ts b/src/behaviortree/BT.ts
index 1919ff1..8997f64 100644
--- a/src/behaviortree/BT.ts
+++ b/src/behaviortree/BT.ts
@@ -42,6 +42,10 @@ export namespace BT {
         defaultValue?: any;
         /** 步进 针对数字类型的变更的最小单位 */
         step?: number,
+        /** 最小值 */
+        min?: number,
+        /** 最大值 */
+        max?: number,
     }
 
     /**
diff --git a/src/behaviortree/BTNode/BTNode.ts b/src/behaviortree/BTNode/BTNode.ts
index 7d022d6..b9ae507 100644
--- a/src/behaviortree/BTNode/BTNode.ts
+++ b/src/behaviortree/BTNode/BTNode.ts
@@ -81,9 +81,7 @@ export abstract class BTNode implements IBTNode {
         // 执行完成时清理
         if (status !== Status.RUNNING) {
             this._local.openNodes.delete(this);
-            this.close();
         }
-
         return status;
     }
 
@@ -93,6 +91,17 @@ export abstract class BTNode implements IBTNode {
      */
     protected open(): void { }
 
+    /**
+     * 清理子节点的打开状态
+     * 一般用于装饰节点的非子节点关闭时， 用来清理子节点的打开状态
+     */
+    protected cleanupChild(): void {
+        const child = this.children[0];
+        if (child && this._local.openNodes.has(child)) {
+            this._local.openNodes.delete(child);
+        }
+    }
+
     /**
      * 执行节点逻辑
      * 子类必须实现此方法
@@ -100,12 +109,6 @@ export abstract class BTNode implements IBTNode {
      */
     public abstract tick(dt: number): Status;
 
-    /**
-     * 清理节点（执行完成时调用）
-     * 子类重写此方法进行状态清理
-     */
-    protected close(): void { }
-
     public getEntity<T>(): T {
         return this._local.getEntity();
     }
diff --git a/src/behaviortree/BTNode/Decorator.ts b/src/behaviortree/BTNode/Decorator.ts
index 28d09a2..aac534a 100644
--- a/src/behaviortree/BTNode/Decorator.ts
+++ b/src/behaviortree/BTNode/Decorator.ts
@@ -27,7 +27,10 @@ export abstract class ConditionDecorator extends Decorator {
     protected abstract isEligible(): boolean;
 
     public tick(dt: number): Status {
-        return this.isEligible() ? this.children[0]!._execute(dt) : Status.FAILURE;
+        if (this.isEligible()) {
+            return this.children[0]!._execute(dt);
+        }
+        return Status.FAILURE;
     }
 }
 
@@ -81,6 +84,7 @@ export class LimitTime extends Decorator {
     public tick(dt: number): Status {
         this._value += dt;
         if (this._value > this._max) {
+            this.cleanupChild();
             return Status.FAILURE;
         }
         return this.children[0]!._execute(dt);
@@ -110,6 +114,7 @@ export class LimitTicks extends Decorator {
     public tick(dt: number): Status {
         this._value++;
         if (this._value > this._max) {
+            this.cleanupChild();
             return Status.FAILURE;
         }
         return this.children[0]!._execute(dt);
@@ -124,7 +129,7 @@ export class LimitTicks extends Decorator {
  */
 @BT.DecoratorNode("Repeat", { name: "重复节点", group: "基础装饰节点", desc: "重复执行子节点指定次数" })
 export class Repeat extends Decorator {
-    @BT.prop({ type: BT.ParamType.int, description: "重复次数", defaultValue: 1 })
+    @BT.prop({ type: BT.ParamType.int, description: "重复次数", defaultValue: 1, min: 1 })
     protected _max: number = 1;
 
     private _value: number = 0;
@@ -161,7 +166,7 @@ export class Repeat extends Decorator {
  */
 @BT.DecoratorNode("RepeatUntilFailure", { name: "重复直到失败", group: "基础装饰节点", desc: "重复执行子节点直到失败或达到最大次数" })
 export class RepeatUntilFailure extends Decorator {
-    @BT.prop({ type: BT.ParamType.int, description: "最大重试次数", defaultValue: 1 })
+    @BT.prop({ type: BT.ParamType.int, description: "最大重试次数", defaultValue: 1, min: 1 })
     protected _max: number = 1;
 
     private _value: number = 0;