diff --git a/middleware/etcd/define.go b/middleware/etcd/define.go
index b2f3d00..5f0feca 100644
--- a/middleware/etcd/define.go
+++ b/middleware/etcd/define.go
@@ -38,3 +38,6 @@ const (
 
 // WatcherHandler 监听key变化的处理函数
 type WatcherHandler func(event *clientv3.Event)
+
+// CancelWatcherHandler 取消监听后的处理函数
+type CancelWatcherHandler func(key string, data interface{})
diff --git a/middleware/etcd/watch.go b/middleware/etcd/watch.go
index c48605a..fd9de85 100644
--- a/middleware/etcd/watch.go
+++ b/middleware/etcd/watch.go
@@ -21,10 +21,48 @@ func WatchKey(ctx context.Context, watchKey string, callbackFunc WatcherHandler)
 		// 变化之后,没有任何逻辑处理,视为不需要监听变化
 		return
 	}
-	rch := Client.Watch(context.Background(), watchKey) // <-chan WatchResponse
+	if nil == ctx {
+		ctx = context.Background()
+	}
+	rch := Client.Watch(ctx, watchKey) // <-chan WatchResponse
 	for watchResp := range rch {
 		for _, ev := range watchResp.Events {
 			callbackFunc(ev)
 		}
 	}
 }
+
+// WatchKeyWithCancel 可以随时取消的
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 3:16 下午 2021/11/23
+func WatchKeyWithCancel(ctx context.Context, watchKey string, callbackFunc WatcherHandler, cancelChan chan interface{}, cancelDealFunc CancelWatcherHandler) {
+	if nil == callbackFunc {
+		// 变化之后,没有任何逻辑处理,视为不需要监听变化
+		return
+	}
+	if nil == ctx {
+		ctx = context.Background()
+	}
+
+	rch := Client.Watch(context.Background(), watchKey) // <-chan WatchResponse
+
+	hasFinish := false
+	for {
+		select {
+		case cancelData := <-cancelChan:
+			if nil != cancelDealFunc {
+				cancelDealFunc(watchKey, cancelData)
+			}
+			hasFinish = true
+		case watchResp := <-rch:
+			for _, ev := range watchResp.Events {
+				callbackFunc(ev)
+			}
+		}
+		if hasFinish {
+			break
+		}
+	}
+}