diff --git a/back/api/cron.ts b/back/api/cron.ts
index df804ec3..be7cfa4f 100644
--- a/back/api/cron.ts
+++ b/back/api/cron.ts
@@ -88,7 +88,7 @@ export default (app: Router) => {
     '/removelabels',
     celebrate({
       body: Joi.object({
-        ids:Joi.array().items(Joi.string().required()),
+        ids:Joi.array().items(Joi.number().required()),
         labels:Joi.array().items(Joi.string().required()),
       })
     }),
@@ -109,7 +109,7 @@ export default (app: Router) => {
     '/addlabels',
     celebrate({
       body: Joi.object({
-        ids:Joi.array().items(Joi.string().required()),
+        ids:Joi.array().items(Joi.number().required()),
         labels:Joi.array().items(Joi.string().required()),
       })
     }),
@@ -190,7 +190,7 @@ export default (app: Router) => {
         command: Joi.string().optional(),
         schedule: Joi.string().optional(),
         name: Joi.string().optional(),
-        id: Joi.string().required(),
+        id: Joi.number().required(),
       }),
     }),
     async (req: Request, res: Response, next: NextFunction) => {
diff --git a/back/services/cron.ts b/back/services/cron.ts
index 216c0a3a..0c7a7db1 100644
--- a/back/services/cron.ts
+++ b/back/services/cron.ts
@@ -94,29 +94,21 @@ export default class CronService {
   }
 
   public async addLabels(ids: string[],labels: string[]){
-    return new Promise((resolve: any) => {
-      this.cronDb.update(
-        { _id: { $in: ids } },
-        { $addToSet: { labels: { $each: labels} } },
-        { multi: true },
-        async (err) => {
-          resolve();
-        },
-      );
-    });
+    const docs = await CrontabModel.findAll({ where: { id:ids }});
+    for (const doc of docs) {
+      await CrontabModel.update({
+        labels: Array.from(new Set(doc.labels.concat(labels)))
+      },{ where: {id:doc.id}});
+    }
   }
 
   public async removeLabels(ids: string[],labels: string[]){
-    return new Promise((resolve: any) => {
-      this.cronDb.update(
-        { _id: { $in: ids } },
-        { $pull: { labels: { $in: labels} } },
-        { multi: true },
-        async (err) => {
-          resolve();
-        },
-      );
-    });
+    const docs = await CrontabModel.findAll({ where: { id:ids }});
+    for (const doc of docs) {
+      await CrontabModel.update({
+        labels: doc.labels.filter( label => !labels.includes(label) )
+      },{ where: {id:doc.id}});
+    }
   }
 
   public async crontabs(searchText?: string): Promise<Crontab[]> {
diff --git a/src/pages/crontab/modal.tsx b/src/pages/crontab/modal.tsx
index bcdad3d8..df0048b5 100644
--- a/src/pages/crontab/modal.tsx
+++ b/src/pages/crontab/modal.tsx
@@ -151,10 +151,10 @@ const CronLabelModal = ({
     <Button onClick={() => handleCancel(false)} key="test">
       取消
     </Button>,
-    <Button type="primary" danger onClick={() => update('removelabels')}>
+    <Button type="primary" danger onClick={() => update('removeLabels')}>
       删除
     </Button>,
-    <Button type="primary" onClick={() => update('addlabels')}>
+    <Button type="primary" onClick={() => update('addLabels')}>
       添加
     </Button>
   ];