diff --git a/epmet-module/gov-issue/gov-issue-server/src/main/java/com/epmet/redis/IssueProjectTagDictRedis.java b/epmet-module/gov-issue/gov-issue-server/src/main/java/com/epmet/redis/IssueProjectTagDictRedis.java
index 94452e8b00..944b347b1e 100644
--- a/epmet-module/gov-issue/gov-issue-server/src/main/java/com/epmet/redis/IssueProjectTagDictRedis.java
+++ b/epmet-module/gov-issue/gov-issue-server/src/main/java/com/epmet/redis/IssueProjectTagDictRedis.java
@@ -327,7 +327,9 @@ public class IssueProjectTagDictRedis {
         }
         if (status.equals(NumConstant.ONE_STR)){
             //标签使用次数-1
-            if (null != redisUtils.getScore(key,formDTO) && redisUtils.getScore(key,formDTO)>NumConstant.ZERO){
+            Double score = redisUtils.getScore(key, formDTO);
+            // 避免score为负数
+            if (null != score && score > NumConstant.ZERO){
                 redisUtils.zIncrementScore(key, formDTO,NumConstant.ONE_NEG);
             }
         }
diff --git a/epmet-module/gov-issue/gov-issue-server/src/main/java/com/epmet/service/impl/IssueTagsServiceImpl.java b/epmet-module/gov-issue/gov-issue-server/src/main/java/com/epmet/service/impl/IssueTagsServiceImpl.java
index 9598d00fbc..4cc9b404e8 100644
--- a/epmet-module/gov-issue/gov-issue-server/src/main/java/com/epmet/service/impl/IssueTagsServiceImpl.java
+++ b/epmet-module/gov-issue/gov-issue-server/src/main/java/com/epmet/service/impl/IssueTagsServiceImpl.java
@@ -177,6 +177,7 @@ public class IssueTagsServiceImpl extends BaseServiceImpl<IssueTagsDao, IssueTag
     @Transactional(rollbackFor = Exception.class)
     public void issueTagSave(IssueTagsSaveFormDTO form, TokenDto tokenDto) {
         String customerId = tokenDto.getCustomerId();
+        // 根据议题ID查询此议题原来有哪些标签
         List<IssueTagFormDTO> tags = baseDao.selectTagsByIssueId(form.getIssueId());
         if (CollectionUtils.isEmpty(form.getTagList())){
             // 清空此议题的标签