diff --git a/components/menu/__tests__/index.test.js b/components/menu/__tests__/index.test.js
index f33029bbde..1076de172c 100644
--- a/components/menu/__tests__/index.test.js
+++ b/components/menu/__tests__/index.test.js
@@ -569,7 +569,6 @@ describe('Menu', () => {
         .instance()
         .getMenuOpenAnimation(''),
     ).toBe('');
-    expect(wrapper.find('InternalMenu').state().switchingModeFromInline).toBe(false);
   });
 
   it('MenuItem should not render Tooltip when inlineCollapsed is false', () => {
diff --git a/components/menu/index.tsx b/components/menu/index.tsx
index f52086f583..ca39243fc5 100644
--- a/components/menu/index.tsx
+++ b/components/menu/index.tsx
@@ -276,10 +276,6 @@ class InternalMenu extends React.Component<InternalMenuProps, MenuState> {
         // submenu should hide without animation
         if (this.state.switchingModeFromInline) {
           menuOpenAnimation = '';
-          this.setState({
-            switchingModeFromInline: false,
-          });
-          // this.switchingModeFromInline = false;
         } else {
           menuOpenAnimation = 'zoom-big';
         }