diff --git a/yuthon_hr_attendance/models/yuthon_vacation_reports.py b/yuthon_hr_attendance/models/yuthon_vacation_reports.py
index a204df6a3..22ea13aca 100644
--- a/yuthon_hr_attendance/models/yuthon_vacation_reports.py
+++ b/yuthon_hr_attendance/models/yuthon_vacation_reports.py
@@ -2643,6 +2643,19 @@ class VacationOverline(models.Model):
          }
 
     def open_overtime_carryover(self):
+        carryover_ids = self.env['overtime.carryover'].search([
+            ('over_line_id', '=', self.id),
+            ('is_void', '=', False),
+        ], order='carry_forward_date asc')
+        if carryover_ids:
+            total_balance = self.duration
+            current_remaining = total_balance
+            for carry in carryover_ids:
+                carry.sudo().write({
+                    'last_month': current_remaining,
+                    'this_month': current_remaining - carry.carry_forward_quantity,
+                })
+                current_remaining = carry.this_month
         return {
             "type": "ir.actions.act_window",
             "name": "结转明细",