diff --git a/simple-mind-map/src/core/render/Render.js b/simple-mind-map/src/core/render/Render.js
index 8ce4e807..f14e67ee 100644
--- a/simple-mind-map/src/core/render/Render.js
+++ b/simple-mind-map/src/core/render/Render.js
@@ -1551,6 +1551,8 @@ class Render {
       return
     }
     this.activeNodeList.forEach(node => {
+      // 概要节点不允许添加下级节点
+      if (node.isGeneralization) return
       node.setData({
         expand: true
       })