diff --git a/laws-modules/src/main/java/com/jero/modules/activiti/process/projectstandard/service/ProcessProjectStandardService.java b/laws-modules/src/main/java/com/jero/modules/activiti/process/projectstandard/service/ProcessProjectStandardService.java
index dda0c203..3af87920 100644
--- a/laws-modules/src/main/java/com/jero/modules/activiti/process/projectstandard/service/ProcessProjectStandardService.java
+++ b/laws-modules/src/main/java/com/jero/modules/activiti/process/projectstandard/service/ProcessProjectStandardService.java
@@ -710,6 +710,7 @@ public class ProcessProjectStandardService extends ServiceImpl<ProcessProjectSta
                 String description = termUserList.stream().map(ProcessProjectStandardTermUser::getDescription).collect(Collectors.joining(","));
                 projectLibrary.setDescription(description);
                 String modelSeries = termUserList.stream().map(ProcessProjectStandardTermUser::getModelSeries).distinct().collect(Collectors.joining(","));
+                modelSeries = Arrays.stream(modelSeries.split(",")).distinct().collect(Collectors.joining(","));
                 projectLibrary.setModelSeries(modelSeries);
             }
             if (allTermIdMap.containsKey(termId)) {