diff --git a/components/vc-cascader/Cascader.jsx b/components/vc-cascader/Cascader.jsx
index add1e1642..ee532cb16 100644
--- a/components/vc-cascader/Cascader.jsx
+++ b/components/vc-cascader/Cascader.jsx
@@ -9,6 +9,7 @@ import { hasProp, getEvents } from '../_util/props-util';
 import BaseMixin from '../_util/BaseMixin';
 import { cloneElement } from '../_util/vnode';
 import { defineComponent } from 'vue';
+import isEqual from 'lodash-es/isEqual';
 
 const BUILT_IN_PLACEMENTS = {
   bottomLeft: {
@@ -134,7 +135,7 @@ export default defineComponent({
       const { options = [], sActiveValue = [] } = this;
       const result = arrayTreeFilter(
         options,
-        (o, level) => o[this.getFieldName('value')] === sActiveValue[level],
+        (o, level) => isEqual(o[this.getFieldName('value')], sActiveValue[level]),
         { childrenKeyName: this.getFieldName('children') },
       );
       if (result[result.length - 2]) {
@@ -145,7 +146,7 @@ export default defineComponent({
     getActiveOptions(activeValue) {
       return arrayTreeFilter(
         this.options || [],
-        (o, level) => o[this.getFieldName('value')] === activeValue[level],
+        (o, level) => isEqual(o[this.getFieldName('value')], activeValue[level]),
         { childrenKeyName: this.getFieldName('children') },
       );
     },
@@ -244,7 +245,7 @@ export default defineComponent({
       const currentOptions = this.getCurrentLevelOptions();
       const currentIndex = currentOptions
         .map(o => o[this.getFieldName('value')])
-        .indexOf(activeValue[currentLevel]);
+        .findIndex(val => isEqual(activeValue[currentLevel], val));
       if (
         e.keyCode !== KeyCode.DOWN &&
         e.keyCode !== KeyCode.UP &&
diff --git a/components/vc-cascader/Menus.jsx b/components/vc-cascader/Menus.jsx
index ba26f5b6e..a3f9ace7f 100644
--- a/components/vc-cascader/Menus.jsx
+++ b/components/vc-cascader/Menus.jsx
@@ -2,6 +2,7 @@ import { getComponent, findDOMNode } from '../_util/props-util';
 import PropTypes from '../_util/vue-types';
 import arrayTreeFilter from 'array-tree-filter';
 import BaseMixin from '../_util/BaseMixin';
+import isEqual from 'lodash-es/isEqual';
 
 export default {
   name: 'CascaderMenus',
@@ -116,7 +117,7 @@ export default {
       const options = this.options;
       return arrayTreeFilter(
         options,
-        (o, level) => o[this.getFieldName('value')] === activeValue[level],
+        (o, level) => isEqual(o[this.getFieldName('value')], activeValue[level]),
         { childrenKeyName: this.getFieldName('children') },
       );
     },
@@ -157,7 +158,7 @@ export default {
 
     isActiveOption(option, menuIndex) {
       const { activeValue = [] } = this;
-      return activeValue[menuIndex] === option[this.getFieldName('value')];
+      return isEqual(activeValue[menuIndex], option[this.getFieldName('value')]);
     },
     saveMenuItem(index) {
       return node => {