diff --git a/docs/java/multi-thread/java线程池学习总结.md b/docs/java/multi-thread/java线程池学习总结.md
index 6a946dd0..890588a2 100644
--- a/docs/java/multi-thread/java线程池学习总结.md
+++ b/docs/java/multi-thread/java线程池学习总结.md
@@ -91,7 +91,7 @@ public class ThreadPoolExecutor extends AbstractExecutorService
 **`ScheduledThreadPoolExecutor` 类描述:**
 
 ```java
-//ScheduledExecutorService实现了ExecutorService接口
+//ScheduledExecutorService继承ExecutorService接口
 public class ScheduledThreadPoolExecutor
         extends ThreadPoolExecutor
         implements ScheduledExecutorService