diff --git a/packages/vant/src/picker/Picker.tsx b/packages/vant/src/picker/Picker.tsx
index d9358f0dc..51f606999 100644
--- a/packages/vant/src/picker/Picker.tsx
+++ b/packages/vant/src/picker/Picker.tsx
@@ -21,6 +21,7 @@ import {
   BORDER_UNSET_TOP_BOTTOM,
 } from '../utils';
 import {
+  isOptionExist,
   isValuesEqual,
   getColumnsType,
   findOptionByValue,
@@ -118,7 +119,7 @@ export default defineComponent({
         // reset values after cascading
         selectedValues.value.forEach((value, index) => {
           const options = currentColumns.value[index];
-          if (!options.find((option) => option[fields.value.value] === value)) {
+          if (!isOptionExist(options, value, fields.value)) {
             selectedValues.value[index] = options.length
               ? options[0][fields.value.value]
               : undefined;
@@ -245,7 +246,10 @@ export default defineComponent({
       currentColumns,
       (columns) => {
         columns.forEach((options, index) => {
-          if (selectedValues.value[index] === undefined && options.length) {
+          if (
+            options.length &&
+            !isOptionExist(options, selectedValues.value[index], fields.value)
+          ) {
             selectedValues.value[index] =
               getFirstEnabledOption(options)[fields.value.value];
           }
diff --git a/packages/vant/src/picker/utils.ts b/packages/vant/src/picker/utils.ts
index 7836478e5..579bc5eb1 100644
--- a/packages/vant/src/picker/utils.ts
+++ b/packages/vant/src/picker/utils.ts
@@ -38,6 +38,14 @@ export function findIndexOfEnabledOption(
   return 0;
 }
 
+export const isOptionExist = (
+  options: PickerOption[],
+  value: number | string | undefined,
+  fields: Required<PickerFieldNames>
+) =>
+  value !== undefined &&
+  !!options.find((option) => option[fields.value] === value);
+
 export function findOptionByValue(
   options: PickerOption[],
   value: number | string,