diff --git a/src/components/menu/menu-item.vue b/src/components/menu/menu-item.vue
index d4fdce9..074192b 100644
--- a/src/components/menu/menu-item.vue
+++ b/src/components/menu/menu-item.vue
@@ -40,9 +40,6 @@
                 return this.hasParentSubmenu ? {
                     paddingLeft: 43 + (this.parentSubmenuNum - 1) * 24 + 'px'
                 } : {};
-            },
-            hasParentSubmenu () {
-                return findComponentUpward(this, 'Submenu');
             }
         },
         methods: {
diff --git a/src/components/menu/mixin.js b/src/components/menu/mixin.js
index d6374bf..3d49761 100644
--- a/src/components/menu/mixin.js
+++ b/src/components/menu/mixin.js
@@ -1,6 +1,9 @@
-import { findComponentsUpward } from '../../utils/assist';
+import { hasParentSubmenu, findComponentUpward, findComponentsUpward } from '../../utils/assist';
 export default {
     computed: {
+        hasParentSubmenu () {
+            return findComponentUpward(this, 'Submenu');
+        },
         parentSubmenuNum () {
             return findComponentsUpward(this, 'Submenu').length;
         }
diff --git a/src/components/menu/submenu.vue b/src/components/menu/submenu.vue
index cd4255e..d010450 100644
--- a/src/components/menu/submenu.vue
+++ b/src/components/menu/submenu.vue
@@ -75,9 +75,6 @@
                 if (this.dropWidth) style.minWidth = `${this.dropWidth}px`;
                 return style;
             },
-            hasParentSubmenu () {
-                return findComponentUpward(this, 'Submenu');
-            },
             titleStyle () {
                 return this.hasParentSubmenu ? {
                     paddingLeft: 43 + (this.parentSubmenuNum - 1) * 24 + 'px'
--
libgit2 0.21.4