diff --git a/packages/components/menu/src/menu.ts b/packages/components/menu/src/menu.ts
index 8c2edbd538..173e2ffbd3 100644
--- a/packages/components/menu/src/menu.ts
+++ b/packages/components/menu/src/menu.ts
@@ -230,7 +230,10 @@ export default defineComponent({
     const calcSliceIndex = () => {
       if (!menu.value) return -1
       const items = Array.from(menu.value?.childNodes ?? []).filter(
-        (item) => item.nodeName !== '#text' || item.nodeValue
+        (item) =>
+          // remove comment type node #12634
+          item.nodeName !== '#comment' &&
+          (item.nodeName !== '#text' || item.nodeValue)
       ) as HTMLElement[]
       const moreItemWidth = 64
       const paddingLeft = Number.parseInt(