diff --git a/packages/vant/src/calendar/CalendarHeader.tsx b/packages/vant/src/calendar/CalendarHeader.tsx
index 7f536398647..6adae946f39 100644
--- a/packages/vant/src/calendar/CalendarHeader.tsx
+++ b/packages/vant/src/calendar/CalendarHeader.tsx
@@ -5,6 +5,7 @@ import { createNamespace, HAPTICS_FEEDBACK, makeStringProp } from '../utils';
 import {
   t,
   bem,
+  compareMonth,
   getPrevMonth,
   getPrevYear,
   getNextMonth,
@@ -39,22 +40,22 @@ export default defineComponent({
   setup(props, { slots, emit }) {
     const prevMonthDisabled = computed(() => {
       const prevMonth = getPrevMonth(props.date!);
-      return props.minDate && prevMonth < props.minDate;
+      return props.minDate && compareMonth(prevMonth, props.minDate) < 0;
     });
 
     const prevYearDisabled = computed(() => {
       const prevYear = getPrevYear(props.date!);
-      return props.minDate && prevYear < props.minDate;
+      return props.minDate && compareMonth(prevYear, props.minDate) < 0;
     });
 
     const nextMonthDisabled = computed(() => {
       const nextMonth = getNextMonth(props.date!);
-      return props.maxDate && nextMonth > props.maxDate;
+      return props.maxDate && compareMonth(nextMonth, props.maxDate) > 0;
     });
 
     const nextYearDisabled = computed(() => {
       const nextYear = getNextYear(props.date!);
-      return props.maxDate && nextYear > props.maxDate;
+      return props.maxDate && compareMonth(nextYear, props.maxDate) > 0;
     });
 
     const renderTitle = () => {
diff --git a/packages/vant/src/calendar/test/switch-mode.spec.ts b/packages/vant/src/calendar/test/switch-mode.spec.ts
index a3267971aa1..8241e1b301d 100644
--- a/packages/vant/src/calendar/test/switch-mode.spec.ts
+++ b/packages/vant/src/calendar/test/switch-mode.spec.ts
@@ -62,6 +62,29 @@ test('disable previous and next month buttons', async () => {
   expect(nextMonth.classes()).not.toContain(disabledActionClass);
 });
 
+test('disable the previous month button correctly when the minDate is the current time', async () => {
+  const wrapper = mount(Calendar, {
+    props: {
+      minDate: new Date(),
+      poppable: false,
+      switchMode: 'month',
+    },
+  });
+
+  await later();
+  const [prevMonth, nextMonth] = wrapper.findAll(
+    '.van-calendar__header-action',
+  );
+
+  expect(prevMonth.classes()).toContain(disabledActionClass);
+
+  await nextMonth.trigger('click');
+  expect(prevMonth.classes()).not.toContain(disabledActionClass);
+
+  await prevMonth.trigger('click');
+  expect(prevMonth.classes()).toContain(disabledActionClass);
+});
+
 test('disable previous and next year buttons', async () => {
   const maxDate = getNextYear(minDate);
   const wrapper = mount(Calendar, {