diff --git a/yuthon_hr_attendance/models/yuthon_vacation_reports.py b/yuthon_hr_attendance/models/yuthon_vacation_reports.py
index 9fffa389d..234bc56a7 100644
--- a/yuthon_hr_attendance/models/yuthon_vacation_reports.py
+++ b/yuthon_hr_attendance/models/yuthon_vacation_reports.py
@@ -1981,15 +1981,18 @@ class YuthonVacationReports(models.Model):
                 ('text', '=', '上月额度继承'),
             ], limit=1)
             if existing_line:
-                continue
-            self.env['vacation.parenting.line'].sudo().create({
-                'vacation_id': report.id,
-                'employee_id': report.employee_id.id,
-                'update_date': update_date,
-                'end_date': end_date,
-                'lines': number_of_hours_display,
-                'text': f"上月额度继承",
-            })
+                existing_line.write({
+                    'lines': number_of_hours_display,
+                })
+            else:
+                self.env['vacation.parenting.line'].sudo().create({
+                    'vacation_id': report.id,
+                    'employee_id': report.employee_id.id,
+                    'update_date': update_date,
+                    'end_date': end_date,
+                    'lines': number_of_hours_display,
+                    'text': f"上月额度继承",
+                })
 
     def _update_meal_lines(self, report, allocations, number_of_hours_display):
         for alloc in allocations: