diff --git a/src/modules/dict/controller/admin/info.ts b/src/modules/dict/controller/admin/info.ts
index d1770d0..ebe684a 100644
--- a/src/modules/dict/controller/admin/info.ts
+++ b/src/modules/dict/controller/admin/info.ts
@@ -10,6 +10,7 @@ import { DictInfoService } from '../../service/info';
 @CoolController({
   api: ['add', 'delete', 'update', 'info', 'list', 'page'],
   entity: DictInfoEntity,
+  service: DictInfoService,
   listQueryOp: {
     fieldEq: ['typeId'],
     keyWordLikeFields: ['name'],
diff --git a/src/modules/dict/service/info.ts b/src/modules/dict/service/info.ts
index 29d72f1..0c396a7 100644
--- a/src/modules/dict/service/info.ts
+++ b/src/modules/dict/service/info.ts
@@ -69,4 +69,35 @@ export class DictInfoService extends BaseService {
       return e.name;
     });
   }
+
+  /**
+   * 修改之后
+   * @param data
+   * @param type
+   */
+  async modifyAfter(data: any, type: 'delete' | 'update' | 'add') {
+    if (type === 'delete') {
+      for (const id of data) {
+        await this.delChildDict(id);
+      }
+    }
+  }
+
+  /**
+   * 删除子字典
+   * @param id
+   */
+  private async delChildDict(id) {
+    const delDict = await this.dictInfoEntity.find({ parentId: id });
+    if (_.isEmpty(delDict)) {
+      return;
+    }
+    const delDictIds = delDict.map(e => {
+      return e.id;
+    });
+    await this.dictInfoEntity.delete(delDictIds);
+    for (const dictId of delDictIds) {
+      await this.delChildDict(dictId);
+    }
+  }
 }