diff --git a/core/src/main/java/com/jinrui/reference/core/service/TagService.java b/core/src/main/java/com/jinrui/reference/core/service/TagService.java
index 2413b04..0e094f3 100644
--- a/core/src/main/java/com/jinrui/reference/core/service/TagService.java
+++ b/core/src/main/java/com/jinrui/reference/core/service/TagService.java
@@ -133,7 +133,11 @@ public class TagService {
      * @return
      */
     public ResultObject<Void> sourceUpdate( String name, Long id) {
+        List<Tag> tagList =  tagMapper.queryTag(null, name, null, "create_time", null);
 
+        if(tagList!=null && tagList.size()>0){
+            return ResultObject.failed("该标签已存在");
+        }
 
         /**
          * 目前来源标签写死为1