diff --git a/src/behaviortree/BTNode/Condition.ts b/src/behaviortree/BTNode/Condition.ts
index 12f4be4..ced9b5a 100644
--- a/src/behaviortree/BTNode/Condition.ts
+++ b/src/behaviortree/BTNode/Condition.ts
@@ -5,8 +5,9 @@
  */
 
 import { Status } from "../header";
-import { LeafNode } from "./AbstractNodes";
+import { Decorator, LeafNode } from "./AbstractNodes";
 
+/** 条件叶子节点 */
 export abstract class Condition extends LeafNode {
     /**
      * 判断是否满足条件
@@ -18,3 +19,16 @@ export abstract class Condition extends LeafNode {
         return this.isEligible() ? Status.SUCCESS : Status.FAILURE;
     }
 }
+
+/** 条件装饰节点 */
+export abstract class ConditionDecorator extends Decorator {
+    /**
+     * 判断是否满足条件
+     * @returns 是否满足条件
+     */
+    protected abstract isEligible(): boolean;
+
+    public tick(): Status {
+        return this.isEligible() ? this.children[0]!._execute() : Status.FAILURE;
+    }
+}
\ No newline at end of file