diff --git a/simple-mind-map/src/core/render/node/nodeLayout.js b/simple-mind-map/src/core/render/node/nodeLayout.js
index 7844c0e3..016d821e 100644
--- a/simple-mind-map/src/core/render/node/nodeLayout.js
+++ b/simple-mind-map/src/core/render/node/nodeLayout.js
@@ -181,7 +181,11 @@ function layout() {
     addCustomContentToNode
   } = this.mindMap.opt
   // 避免编辑过程中展开收起按钮闪烁的问题
-  if (openRealtimeRenderOnNodeTextEdit && this._expandBtn) {
+  if (
+    openRealtimeRenderOnNodeTextEdit &&
+    this._expandBtn &&
+    this.getChildrenLength() > 0
+  ) {
     this.group.add(this._expandBtn)
   }
   const { width, height } = this