diff --git a/components/dropdown/dropdown.tsx b/components/dropdown/dropdown.tsx
index 5424150b9..143ed3d31 100644
--- a/components/dropdown/dropdown.tsx
+++ b/components/dropdown/dropdown.tsx
@@ -92,7 +92,7 @@ const Dropdown = defineComponent({
       class: classNames(child?.props?.class, `${prefixCls}-trigger`),
       disabled,
     });
-    const triggerActions = disabled ? [] : trigger;
+    const triggerActions = disabled ? [] : typeof trigger === 'string' ? [trigger] : trigger;
     let alignPoint;
     if (triggerActions && triggerActions.indexOf('contextmenu') !== -1) {
       alignPoint = true;
diff --git a/components/vc-dropdown/src/Dropdown.jsx b/components/vc-dropdown/src/Dropdown.jsx
index 318b67032..b80da0eeb 100644
--- a/components/vc-dropdown/src/Dropdown.jsx
+++ b/components/vc-dropdown/src/Dropdown.jsx
@@ -29,8 +29,8 @@ export default defineComponent({
       'hover',
     ),
     alignPoint: PropTypes.looseBool,
-    showAction: PropTypes.array.def([]),
-    hideAction: PropTypes.array.def([]),
+    showAction: PropTypes.array,
+    hideAction: PropTypes.array,
     getPopupContainer: PropTypes.func,
     visible: PropTypes.looseBool,
     defaultVisible: PropTypes.looseBool.def(false),
@@ -177,7 +177,6 @@ export default defineComponent({
     if (!triggerHideAction && trigger.indexOf('contextmenu') !== -1) {
       triggerHideAction = ['click'];
     }
-
     const triggerProps = {
       ...otherProps,
       prefixCls,