diff --git a/components/dropdown/dropdown.tsx b/components/dropdown/dropdown.tsx
index 7420bb96e..00b319f4a 100644
--- a/components/dropdown/dropdown.tsx
+++ b/components/dropdown/dropdown.tsx
@@ -136,6 +136,7 @@ const Dropdown = defineComponent({
 
       const builtinPlacements = getPlacements({
         arrowPointAtCenter: typeof arrow === 'object' && arrow.pointAtCenter,
+        autoAdjustOverflow: true,
       });
       const dropdownProps = omit(
         {