diff --git a/simple-mind-map/index.js b/simple-mind-map/index.js
index 031571cc..6dc77fd2 100644
--- a/simple-mind-map/index.js
+++ b/simple-mind-map/index.js
@@ -258,15 +258,13 @@ class MindMap {
 
   //  动态设置思维导图数据，纯节点数据
   setData(data) {
+    data = simpleDeepClone(data || {})
     this.execCommand('CLEAR_ACTIVE_NODE')
     this.command.clearHistory()
     this.command.addHistory()
-    if (this.richText) {
-      this.renderer.renderTree = this.richText.handleSetData(data)
-    } else {
-      this.renderer.renderTree = data
-    }
+    this.renderer.setData(data)
     this.reRender(() => {}, CONSTANTS.SET_DATA)
+    this.emit('set_data', data)
   }
 
   //  动态设置思维导图数据，包括节点数据、布局、主题、视图
diff --git a/simple-mind-map/src/core/render/Render.js b/simple-mind-map/src/core/render/Render.js
index 5f53134e..d0fa7ea6 100644
--- a/simple-mind-map/src/core/render/Render.js
+++ b/simple-mind-map/src/core/render/Render.js
@@ -97,6 +97,15 @@ class Render {
     )(this, this.mindMap.opt.layout)
   }
 
+  // 重新设置思维导图数据
+  setData(data) {
+    if (this.mindMap.richText) {
+      this.renderTree = this.mindMap.richText.handleSetData(data)
+    } else {
+      this.renderTree = data
+    }
+  }
+
   //   绑定事件
   bindEvent() {
     // 点击事件