diff --git a/yuthon_catering/models/yuthon_catering.py b/yuthon_catering/models/yuthon_catering.py
index 342b623f4..b2471791d 100644
--- a/yuthon_catering/models/yuthon_catering.py
+++ b/yuthon_catering/models/yuthon_catering.py
@@ -36,6 +36,64 @@ class YuthonCatering(models.Model):
         ('confirmed', '已确认'),
     ], default='unconfirmed', string='状态')
 
+    def _recompute_related_meal_expenses(self):
+        """当 yuthon.catering 数据变化时，主动触发关联 yuthon.meal.expenses 重算"""
+        for record in self:
+            if not record.employee_id or not record.date:
+                continue
+            year = str(record.date.year)
+            month = str(record.date.month)
+            meal_records = self.env['yuthon.meal.expenses'].search([
+                ('employee_id', '=', record.employee_id.id),
+                ('select_year', '=', year),
+                ('select_time', '=', month),
+            ])
+            if meal_records:
+                meal_records._compute_catering_counts()
+
+    def write(self, vals):
+        # 记录写入前的员工和日期（防止改了 employee_id 或 date 后找不到旧记录）
+        old_data = [(r.employee_id, r.date) for r in self]
+        result = super().write(vals)
+        # 触发旧记录关联的 meal.expenses 重算
+        for emp, date in old_data:
+            if emp and date:
+                year = str(date.year)
+                month = str(date.month)
+                meal_records = self.env['yuthon.meal.expenses'].search([
+                    ('employee_id', '=', emp.id),
+                    ('select_year', '=', year),
+                    ('select_time', '=', month),
+                ])
+                if meal_records:
+                    meal_records._compute_catering_counts()
+        # 如果改了 employee_id 或 date，也触发新记录
+        if 'employee_id' in vals or 'date' in vals:
+            self._recompute_related_meal_expenses()
+        return result
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        records = super().create(vals_list)
+        records._recompute_related_meal_expenses()
+        return records
+
+    def unlink(self):
+        # 删除前先收集关联信息
+        related_info = [(r.employee_id, r.date) for r in self if r.employee_id and r.date]
+        result = super().unlink()
+        for emp, date in related_info:
+            year = str(date.year)
+            month = str(date.month)
+            meal_records = self.env['yuthon.meal.expenses'].search([
+                ('employee_id', '=', emp.id),
+                ('select_year', '=', year),
+                ('select_time', '=', month),
+            ])
+            if meal_records:
+                meal_records._compute_catering_counts()
+        return result
+
     def task_catering22(self):
         cat_ids = self.env["yuthon.catering"].browse(self._context.get('active_ids', self._context.get('active_id')))
         for cat in cat_ids: