diff --git a/src/modules/pages/connection/list/list_item/list_item.ts b/src/modules/pages/connection/list/list_item/list_item.ts
index 3fb61b5..dbcdb5a 100644
--- a/src/modules/pages/connection/list/list_item/list_item.ts
+++ b/src/modules/pages/connection/list/list_item/list_item.ts
@@ -4,7 +4,7 @@ import './list_item.less';
 import { ListItemModel, ListItemModelXtype } from './list_item.model';
 import { PAGE_INDEX } from '@constants/constant';
 import { hasRegistered } from '../list.service';
-import { connectionCanEdit, getTextByDatabaseType } from '../../../../app.service';
+import { connectionCanEdit, getTextByDatabaseType, getChartLength } from '../../../../app.service';
 import { testConnection } from '../../../maintain/forms/form.server';
 
 export const ListItemXtype = 'dec.dcm.connection.list_item';
@@ -71,6 +71,13 @@ export class ListItem extends BI.BasicButton {
                             eventName: BI.SignEditor.EVENT_BLUR,
                             action: () => {
                                 const newName = this.nameEditor.getValue();
+                                if (getChartLength(newName) > 200) {
+                                    BI.Msg.toast(BI.i18nText(BI.i18nText('Dec-Dcm_Connection_Cannot_Too_Lang')), {
+                                        level: 'error',
+                                    });
+                                    
+                                    return;
+                                }
                                 this.store.changeName(name, newName).then(re => {
                                     this.store.setIsEdit(false, name);
                                     if (re.errorCode) {