diff --git a/components/date-picker2/__tests__/index-spec.js b/components/date-picker2/__tests__/index-spec.js
index 4c15e0afe5..5ea28490ae 100644
--- a/components/date-picker2/__tests__/index-spec.js
+++ b/components/date-picker2/__tests__/index-spec.js
@@ -919,6 +919,26 @@ describe('Picker', () => {
                 wrapper.unmount();
                 wrapper = null;
             }
+        });
+         // fix: https://github.com/alibaba-fusion/next/issues/3877
+        it('should not select default endDate',()=>{
+                const currentDate = dayjs();
+                const currentDateStr = currentDate.format('YYYY-MM-DD');
+                const disabledDate = function (date, mode) {
+                    return currentDate.date() !== date.date();
+                };
+                wrapper = mount(<RangePicker visible showTime disabledDate={disabledDate}  />);
+                clickDate(currentDateStr);
+                clickTime('12');
+                clickTime('12', 'minute');
+                clickTime('12', 'second');
+                assert.deepEqual(getStrValue(), [`${currentDateStr} 12:12:12`, '']);
+                clickOk();
+                clickTime('16');
+                clickTime('16', 'minute');
+                clickTime('35', 'second');
+                clickOk();
+                assert.deepEqual(getStrValue(), [`${currentDateStr} 12:12:12`, `${currentDateStr} 16:16:35`]);
         });
         // https://github.com/alibaba-fusion/next/issues/2641
         it('value controlled issue', () => {
diff --git a/components/date-picker2/panels/range-panel.jsx b/components/date-picker2/panels/range-panel.jsx
index 960ce5cd5f..c41eadca28 100644
--- a/components/date-picker2/panels/range-panel.jsx
+++ b/components/date-picker2/panels/range-panel.jsx
@@ -163,9 +163,9 @@ class RangePanel extends React.Component {
         if (!curDateVal) {
             curDateVal =
                 inputType === BEGIN && end
-                    ? end.subtract(1, 'day')
+                    ? end
                     : inputType === END && begin
-                    ? begin.add(1, 'day')
+                    ? begin
                     : datejs();
         }
         curDateVal = setTime(curDateVal, v);