diff --git a/microservices-modules/microservices-modules-pms/src/main/java/com/microservices/pms/product/service/impl/PmsProductRequirementServiceImpl.java b/microservices-modules/microservices-modules-pms/src/main/java/com/microservices/pms/product/service/impl/PmsProductRequirementServiceImpl.java
index 7fa714ac1..bfa03b967 100644
--- a/microservices-modules/microservices-modules-pms/src/main/java/com/microservices/pms/product/service/impl/PmsProductRequirementServiceImpl.java
+++ b/microservices-modules/microservices-modules-pms/src/main/java/com/microservices/pms/product/service/impl/PmsProductRequirementServiceImpl.java
@@ -389,6 +389,9 @@ public class PmsProductRequirementServiceImpl implements IPmsProductRequirementS
                 productReqSpecsSearchVo.setChildrenModuleIdList(moduleIdList);
             } else if (productReqSpecsSearchVo.getPmsProductModuleId() == 0) {
                 List<Long> moduleIdList = pmsProductModuleService.selectNotIncludedFixedProductModuleIdList(productReqSpecsSearchVo.getPmsProductIdentifier());
+                if (moduleIdList.isEmpty()) {
+                    moduleIdList = null;
+                }
                 productReqSpecsSearchVo.setChildrenModuleIdList(moduleIdList);
             }
         }