diff --git a/physical-module-system/physical-system-biz/src/main/java/org/jeecg/modules/database/controller/ExperimentController.java b/physical-module-system/physical-system-biz/src/main/java/org/jeecg/modules/database/controller/ExperimentController.java
index bc4854c..34cc091 100644
--- a/physical-module-system/physical-system-biz/src/main/java/org/jeecg/modules/database/controller/ExperimentController.java
+++ b/physical-module-system/physical-system-biz/src/main/java/org/jeecg/modules/database/controller/ExperimentController.java
@@ -193,6 +193,7 @@ public class ExperimentController extends JeecgController<Experiment, IExperimen
         } else {
             experiment.setStatus(dbExp.getStatus());
         }
+        experiment.setIndexNo(dbExp.getIndexNo());
         List<ExperimentSampleInfo> sampleInfoList = experiment.getSampleInfoList();
         List<ExperimentIrradiationBoard> irradiationBoardList = experiment.getIrradiationBoardList();
         List<ExperimentDeviationCondition> deviationConditionList = experiment.getDeviationConditionList();
diff --git a/physical-module-system/physical-system-biz/src/main/java/org/jeecg/modules/database/service/impl/ExperimentServiceImpl.java b/physical-module-system/physical-system-biz/src/main/java/org/jeecg/modules/database/service/impl/ExperimentServiceImpl.java
index cda0928..86e91a4 100644
--- a/physical-module-system/physical-system-biz/src/main/java/org/jeecg/modules/database/service/impl/ExperimentServiceImpl.java
+++ b/physical-module-system/physical-system-biz/src/main/java/org/jeecg/modules/database/service/impl/ExperimentServiceImpl.java
@@ -202,11 +202,13 @@ public class ExperimentServiceImpl extends ServiceImpl<ExperimentMapper, Experim
 
     @Override
     public void saveWithDetail(Experiment experiment) {
-        if (Objects.isNull(experiment.getIndexNo())) {
-            Integer lastIndex = getLastIndex();
-            experiment.setIndexNo(lastIndex + 1);
+        if (StringUtils.isBlank(experiment.getId())) {
+            if (Objects.isNull(experiment.getIndexNo())) {
+                Integer lastIndex = getLastIndex();
+                experiment.setIndexNo(lastIndex + 1);
+            }
+            saveOrUpdate(experiment);
         }
-        saveOrUpdate(experiment);
 
         String experimentUser = experiment.getExperimentUser();
         if (StringUtils.isNotBlank(experimentUser)) {