diff --git a/simple-mind-map/src/plugins/Select.js b/simple-mind-map/src/plugins/Select.js
index c26ebb58..d639202a 100644
--- a/simple-mind-map/src/plugins/Select.js
+++ b/simple-mind-map/src/plugins/Select.js
@@ -184,6 +184,7 @@ class Select {
 
   //  创建矩形
   createRect(x, y) {
+    if (this.rect) this.rect.remove()
     this.rect = this.mindMap.svg
       .polygon()
       .stroke({