diff --git a/src/components/date-picker/panel/Date/date-range.vue b/src/components/date-picker/panel/Date/date-range.vue
index 0cf6056f..9b925029 100644
--- a/src/components/date-picker/panel/Date/date-range.vue
+++ b/src/components/date-picker/panel/Date/date-range.vue
@@ -161,7 +161,7 @@
                 leftPickerTable: `${this.selectionMode}-table`,
                 rightPickerTable: `${this.selectionMode}-table`,
                 leftPanelDate: leftPanelDate,
-                rightPanelDate: new Date(leftPanelDate.getFullYear(), leftPanelDate.getMonth() + 1, leftPanelDate.getDate())
+                rightPanelDate: new Date(leftPanelDate.getFullYear(), leftPanelDate.getMonth() + 1, 1)
             };
         },
         computed: {