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 0b7decc..f57ed03 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
@@ -179,6 +179,7 @@ public class ExperimentServiceImpl extends ServiceImpl<ExperimentMapper, Experim
                 BeanUtil.copyProperties(sampleInfo, target);
                 target.setId(null);
                 target.setExperimentId(experiment.getId());
+                target.setSampleImage(null);
                 experimentSampleInfoService.save(target);
             });
         }