diff --git a/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs b/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs
index 153f266f..b5f22688 100644
--- a/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs
+++ b/WarehouseMgr/Tnb.WarehouseMgr/WareHouseService.cs
@@ -567,7 +567,7 @@ namespace Tnb.WarehouseMgr
                     //同电梯组电梯
                     var sGpEle = await _db.Queryable<WmsElevatorH>().Where(it => it.elevator_group == curEle.elevator_group && it.id != curEle.id && it.status == 1).ToListAsync();
                     //判断电梯组中各电梯任务数
-                    if (sGpEle.FindAll(x => (x.task_nums - curEle.task_nums) % 2 == 1)?.Count > 0)
+                    if (sGpEle.FindAll(x => Math.Abs(x.task_nums - curEle.task_nums) % 2 == 1)?.Count > 0)
                     {
                         var sGpDs = await _db.Queryable<WmsElevatorD>().Where(it => it.bill_id == sGpEle.First().id).ToListAsync();
                         if (sGpDs?.Count > 0)