diff --git a/packages/rax-simulator-renderer/src/utils/find-dom-nodes.ts b/packages/rax-simulator-renderer/src/utils/find-dom-nodes.ts
new file mode 100644
index 000000000..97a54ed36
--- /dev/null
+++ b/packages/rax-simulator-renderer/src/utils/find-dom-nodes.ts
@@ -0,0 +1,13 @@
+import { isElement } from '@ali/lowcode-utils';
+import findDOMNode from 'rax-find-dom-node';
+// import { isDOMNode } from './is-dom-node';
+
+export function raxFindDOMNodes(instance: any): Array<Element | Text> | null {
+  if (!instance) {
+    return null;
+  }
+  if (isElement(instance)) {
+    return [instance];
+  }
+  return findDOMNode(instance);
+}
diff --git a/packages/rax-simulator-renderer/src/utils/is-dom-node.ts b/packages/rax-simulator-renderer/src/utils/is-dom-node.ts
new file mode 100644
index 000000000..bfbeb79c1
--- /dev/null
+++ b/packages/rax-simulator-renderer/src/utils/is-dom-node.ts
@@ -0,0 +1,4 @@
+export function isDOMNode(node: any): node is Element | Text {
+  if (!node) return false;
+  return node.nodeType && (node.nodeType === Node.ELEMENT_NODE || node.nodeType === Node.TEXT_NODE);
+}