diff --git a/modules/i3plus-ext-mes-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/apiservice/serviceimpl/busi/MesCreateWorkOrderImpl.java b/modules/i3plus-ext-mes-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/apiservice/serviceimpl/busi/MesCreateWorkOrderImpl.java
index cef9094..88fa57e 100644
--- a/modules/i3plus-ext-mes-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/apiservice/serviceimpl/busi/MesCreateWorkOrderImpl.java
+++ b/modules/i3plus-ext-mes-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/apiservice/serviceimpl/busi/MesCreateWorkOrderImpl.java
@@ -438,14 +438,24 @@ public class MesCreateWorkOrderImpl implements IMesCreateWorkOrder {
                     //获取相同总成的ptrId 在ptr详情中
                     List<MesPartPtr> custPartPtrList = ptr.stream().filter(item -> item.getIsCustomerSendPrtInfo() == null || item.getIsCustomerSendPrtInfo() != CommonEnumUtil.TRUE_OR_FALSE.TRUE.getValue()).collect(Collectors.toList());
                     if (!custPartPtrList.isEmpty()) {
-                        mesPartPtr = custPartPtrList.get(0);
-                        //查询ptr总成--只有特定总成才会替换
-                        DdlPackBean detailPartPtr = DdlPackBean.getDdlPackBean(organizeCode);
-                        DdlPreparedPack.getNumEqualPack(mesPartPtr.getId(), "ptrId", detailPartPtr);
-                        DdlPreparedPack.getStringEqualPack(mesWorkOrder.getPartNo(), "totalPartNo", detailPartPtr);
-                        List<MesPartPtrDetail> ptrDetailList = partPtrDetailRao.findByHqlWhere(detailPartPtr);
-                        if (!ptrDetailList.isEmpty()) {
-                            mesPartPtrDetail = ptrDetailList.get(0);
+                        /**
+                         * 修复bug 44747 同一个原零件对应多个ptr逻辑优化
+                         * 同一个原零件对应多个PTR，如果是内部PTR，需要去遍历每一个PTR的明细（总成零件号），不能是只找第一个PTR;
+                         */
+                        for (MesPartPtr partPtr : custPartPtrList) {
+                            //查询ptr总成--只有特定总成才会替换
+                            DdlPackBean detailPartPtr = DdlPackBean.getDdlPackBean(organizeCode);
+                            DdlPreparedPack.getNumEqualPack(partPtr.getId(), "ptrId", detailPartPtr);
+                            DdlPreparedPack.getStringEqualPack(mesWorkOrder.getPartNo(), "totalPartNo", detailPartPtr);
+                            List<MesPartPtrDetail> ptrDetailList = partPtrDetailRao.findByHqlWhere(detailPartPtr);
+                            if (!ptrDetailList.isEmpty()) {
+                                mesPartPtrDetail = ptrDetailList.get(0);
+                                mesPartPtr = partPtr;
+                                break;
+                            }
+                        }
+                        if (mesPartPtr == null){
+                            mesPartPtr = custPartPtrList.get(0);
                         }
                     }
                 }