diff --git a/sf_manufacturing/models/mrp_workcenter.py b/sf_manufacturing/models/mrp_workcenter.py
index 017f89b8..81a252fb 100644
--- a/sf_manufacturing/models/mrp_workcenter.py
+++ b/sf_manufacturing/models/mrp_workcenter.py
@@ -163,6 +163,19 @@ class ResWorkcenter(models.Model):
             else:
                 record.effective_working_hours_day = 0
 
+    # 计算传入时间日有效工作时长
+    def _compute_effective_working_hours_day1(self, date):
+        effective_working_hours_day = 0
+        for record in self:
+            attendance_ids = [p for p in record.resource_calendar_id.attendance_ids if
+                              p.dayofweek == self.get_current_day_of_week(date)]
+            if attendance_ids:
+                for attendance_id in attendance_ids:
+                    if attendance_id.hour_from and attendance_id.hour_to:
+                        effective_working_hours_day += attendance_id.hour_to - attendance_id.hour_from
+
+        return effective_working_hours_day
+
     # 获取传入时间是星期几
     def get_current_day_of_week(self, datetime):
         day_num = datetime.weekday()
@@ -211,7 +224,8 @@ class ResWorkcenter(models.Model):
                                                                  ('state', 'not in', ['draft', 'cancel'])])
         if plan_ids:
             sum_qty = sum([p.product_qty for p in plan_ids])
-            if sum_qty >= self.default_capacity:
+            date_planned_working_hours = self._compute_effective_working_hours_day1(date_planned)
+            if sum_qty >= date_planned_working_hours:
                 return False
         return True