diff --git a/src/main/java/com/yem/wm/im/inquirylist/form/InquirylistEdit.java b/src/main/java/com/yem/wm/im/inquirylist/form/InquirylistEdit.java
index 7a423642..446f32f5 100644
--- a/src/main/java/com/yem/wm/im/inquirylist/form/InquirylistEdit.java
+++ b/src/main/java/com/yem/wm/im/inquirylist/form/InquirylistEdit.java
@@ -242,7 +242,9 @@ public class InquirylistEdit extends AbstractBillPlugIn implements BeforeF7Selec
         if (yemProductmodel!=null){
             DynamicObject yemProducts = yemProductmodel.getDynamicObject("yem_products");
             if (yemProducts!=null){
-                BigDecimal yemCostdifference = yemProducts.getBigDecimal("yem_costdifference");
+                DynamicObject loadSingle = BusinessDataServiceHelper.loadSingle("yem_bd_productstree", "id,number,yem_costdifference"
+                        , new QFilter[]{new QFilter("id", QCP.equals, yemProducts.getLong("id"))});
+                BigDecimal yemCostdifference = loadSingle.getBigDecimal("yem_costdifference");
                 this.getModel().setValue("yem_unitprice",yemQingdaounitprice.subtract(yemCostdifference), rowIndex);
             }
         }