diff --git a/src/WMS.Web.Repositories/InStockTaskRepositories.cs b/src/WMS.Web.Repositories/InStockTaskRepositories.cs
index 4b99331d..d1061335 100644
--- a/src/WMS.Web.Repositories/InStockTaskRepositories.cs
+++ b/src/WMS.Web.Repositories/InStockTaskRepositories.cs
@@ -176,7 +176,7 @@ namespace WMS.Web.Repositories
                 ReceiveQty = s.detail.ReceiveQty,
                 //采购：可入库数量=应入库数量-收货数量-已交数量+该明细的入库数量之和；
                 //AvailableQty = s.detail.AccruedQty - s.detail.ReceiveQty- s.detail.DeliveredQty+s.detail.RealityQty,
-                AvailableQty = s.detail.AccruedQty - s.detail.ReceiveQty - s.detail.DeliveredQty,
+                AvailableQty = s.detail.AccruedQty - s.detail.ReceiveQty - (s.detail.DeliveredQty> s.detail.RealityQty? s.detail.DeliveredQty : s.detail.RealityQty),
                 Remark = s.detail.Remark,
                 ErpDetailId=s.detail.ErpDetailId
             }).ToListAsync();