diff --git a/hw-modules/hw-mes/src/main/java/com/hw/mes/service/impl/MesPurchaseOrderServiceImpl.java b/hw-modules/hw-mes/src/main/java/com/hw/mes/service/impl/MesPurchaseOrderServiceImpl.java
index cc55c8a..cd484a8 100644
--- a/hw-modules/hw-mes/src/main/java/com/hw/mes/service/impl/MesPurchaseOrderServiceImpl.java
+++ b/hw-modules/hw-mes/src/main/java/com/hw/mes/service/impl/MesPurchaseOrderServiceImpl.java
@@ -250,11 +250,12 @@ public class MesPurchaseOrderServiceImpl implements IMesPurchaseOrderService {
                 if (mesSaleOrderRelatesBySale != null && !mesSaleOrderRelatesBySale.isEmpty()) {
                     throw new ServiceException("选择的销售订单已经合并过，不能绑定");
                 }
-            }
+            }else{
+                if (orderBind.getSaleOrderId() != null) {
+                    throw new ServiceException("安全库存标识为是的不需要选择销售订单");
+                }
 
-            if (orderBind.getSafeFlag().equals(MesConstants.MES_ORDER_BIND_SAFE_FLAG_YES)
-                    && orderBind.getSaleOrderId() != null) {
-                throw new ServiceException("安全库存标识为是的不需要选择销售订单");
+                orderBind.setSaleOrderId(0L);
             }
 
             BigDecimal bindAmount = orderBind.getBindAmount() == null ?
@@ -348,15 +349,15 @@ public class MesPurchaseOrderServiceImpl implements IMesPurchaseOrderService {
             MesPurchaseOrder dbMesPurchaseOrder = mesPurchaseOrderMapper.
                     unbindPurchaseOrderListByPurchaseAndSaleOrderId(purchaseOrderId, mesSaleOrder.getSaleOrderId());
             if (!mesPurchaseOrder.equals(dbMesPurchaseOrder)) {
-                throw new ServiceException("数据有变化，请重新更新");
+                throw new ServiceException("序号: " + mesPurchaseOrder.getSerialNumber() +"，数据有变化，请重新更新");
             }
 
             if (dbMesPurchaseOrder.getOrderStatus().equals(MesConstants.MES_PURCHASE_ORDER_STATUS_PURCHASE_COMPLETE)) {
-                throw new ServiceException("此采购订单已经采购完成，无需再绑定");
+                throw new ServiceException("序号: " + mesPurchaseOrder.getSerialNumber() +"，此采购订单已经采购完成，无需再绑定");
             }
 
             if (dbMesPurchaseOrder.getOrderStatus().equals(MesConstants.MES_PURCHASE_ORDER_STATUS_AUTO_OUTSTOCK_COMPLETE)) {
-                throw new ServiceException("此采购订单已经自动出库完成，无需再绑定");
+                throw new ServiceException("序号: " + mesPurchaseOrder.getSerialNumber() +"，此采购订单已经自动出库完成，无需再绑定");
             }
 
 
@@ -426,10 +427,15 @@ public class MesPurchaseOrderServiceImpl implements IMesPurchaseOrderService {
             mesOrderBindMapper.insertMesOrderBind(orderBind);
         } else {
             MesOrderBind bind = bindList.get(0);
-            bind.setBindAmount(purchaseOrder.getUpdateAmount());
-            bind.setUpdateBy(SecurityUtils.getUsername());
-            bind.setUpdateTime(DateUtils.getNowDate());
-            mesOrderBindMapper.updateMesOrderBind(bind);
+            if(purchaseOrder.getUpdateAmount().compareTo(BigDecimal.ZERO)>0){
+                bind.setBindAmount(purchaseOrder.getUpdateAmount());
+                bind.setUpdateBy(SecurityUtils.getUsername());
+                bind.setUpdateTime(DateUtils.getNowDate());
+                mesOrderBindMapper.updateMesOrderBind(bind);
+            }else{
+                mesOrderBindMapper.deleteMesOrderBindByOrderBindId(bind.getOrderBindId());
+            }
+
         }
     }
 
diff --git a/hw-ui/src/views/mes/saleOrder/bindingPurchase.vue b/hw-ui/src/views/mes/saleOrder/bindingPurchase.vue
index bb5dc99..afb9f89 100644
--- a/hw-ui/src/views/mes/saleOrder/bindingPurchase.vue
+++ b/hw-ui/src/views/mes/saleOrder/bindingPurchase.vue
@@ -423,9 +423,9 @@ export default {
 
         const updateAmount = obj.updateAmount ? parseInt(obj.updateAmount) : 0;//更新绑定数
 
-        if (!this.isPositiveInteger(updateAmount) || updateAmount <= 0) {
+        if (!this.isPositiveInteger(updateAmount) || updateAmount < 0) {
           this.submitLoading = false;
-          this.$modal.msgError("序号为" + (obj.serialNumber) + ",绑定数量须为大于0的正整数！");
+          this.$modal.msgError("序号为" + (obj.serialNumber) + ",绑定数量须为大于等于0！");
           return;
         }