diff --git a/packages/tree/src/model/node.js b/packages/tree/src/model/node.js
index 36afeaf74..1d3e5485e 100644
--- a/packages/tree/src/model/node.js
+++ b/packages/tree/src/model/node.js
@@ -111,7 +111,7 @@ export default class Node {
     } else if (this.level > 0 && store.lazy && store.defaultExpandAll) {
       this.expand();
     }
-    if (!Array.isArray(this.data)) {
+    if (this.data && !Array.isArray(this.data)) {
       markNodeData(this, this.data);
     }
     if (!this.data) return;