diff --git a/components/dropdown/dropdown.vue b/components/dropdown/dropdown.vue
index 6a3ebdfe1..e0b20bff8 100644
--- a/components/dropdown/dropdown.vue
+++ b/components/dropdown/dropdown.vue
@@ -41,7 +41,7 @@ const Dropdown = {
     const overlay = $slots.overlay && $slots.overlay[0]
     // menu cannot be selectable in dropdown defaultly
     const overlayProps = overlay && getPropsData(overlay)
-    const selectable = overlayProps.selectable || false
+    const selectable = (overlayProps.selectable !== undefined && overlayProps.selectable !== false) || false
     const fixedModeOverlay = cloneElement(overlay, {
       props: {
         mode: 'vertical',