diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdTagLibraryServiceImpl.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdTagLibraryServiceImpl.java
index 8814db2..3694052 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdTagLibraryServiceImpl.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdTagLibraryServiceImpl.java
@@ -13,7 +13,9 @@ import com.electromagnetic.industry.software.common.pojo.TreeNode;
 import com.electromagnetic.industry.software.common.util.IdWorker;
 import com.electromagnetic.industry.software.common.util.UserThreadLocal;
 import com.electromagnetic.industry.software.manage.mapper.EdTagLibraryMapper;
+import com.electromagnetic.industry.software.manage.mapper.FileTagRelationMapper;
 import com.electromagnetic.industry.software.manage.pojo.models.EdTagLibrary;
+import com.electromagnetic.industry.software.manage.pojo.models.FileTagRelation;
 import com.electromagnetic.industry.software.manage.pojo.resp.FileTagInfo;
 import com.electromagnetic.industry.software.manage.pojo.resp.TagListVO;
 import com.electromagnetic.industry.software.manage.service.EdTagLibraryService;
@@ -21,12 +23,16 @@ import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import javax.annotation.Resource;
 import java.util.*;
 import java.util.stream.Collectors;
 
 @Service
 public class EdTagLibraryServiceImpl extends ServiceImpl<EdTagLibraryMapper, EdTagLibrary> implements EdTagLibraryService {
 
+    @Resource
+    FileTagRelationMapper fileTagRelationMapper;
+
     /**
      * 新建标签组
      *
@@ -182,6 +188,8 @@ public class EdTagLibraryServiceImpl extends ServiceImpl<EdTagLibraryMapper, EdT
         // 如果是标签组，级联删除其下的所有标签
         if (tag.getType() == 0) {
             this.remove(new LambdaQueryWrapper<EdTagLibrary>().eq(EdTagLibrary::getParentId, tagId));
+            // 删除标签关联文件
+            fileTagRelationMapper.delete(new LambdaQueryWrapper<FileTagRelation>().eq(FileTagRelation::getTagId, tagId));
         }
         // 删除本身
         boolean isDeleted = this.removeById(tagId);