diff --git a/Laravel/app/Services/Admin/YeWu/PlanListService.php b/Laravel/app/Services/Admin/YeWu/PlanListService.php
index 45699e9..a0bb3d3 100644
--- a/Laravel/app/Services/Admin/YeWu/PlanListService.php
+++ b/Laravel/app/Services/Admin/YeWu/PlanListService.php
@@ -710,6 +710,9 @@ private function doSameDaySlotAssign($startDate, $endDate, $regnum, $entrustids,
 
                             if (($remaining - $used) <= 0) continue;
 
+                            // 冲突检查：同一科室组内，不同排班时间不能重叠
+                            if ($this->isTimeConflict($assignedPlans, $plan)) continue;
+
                             $result[] = [
                                 'id' => $item['id'],
                                 'plan_id' => $planId,