diff --git a/static/resources/js/services/i18n/locale_messages_en-US.js b/static/resources/js/services/i18n/locale_messages_en-US.js
index 68793ec7d..adb10dd82 100644
--- a/static/resources/js/services/i18n/locale_messages_en-US.js
+++ b/static/resources/js/services/i18n/locale_messages_en-US.js
@@ -139,7 +139,7 @@ var locale_messages = {
       'The space of this repository will be recycled during garbage collection.<br/>' +
       '<br/>Delete repository "$0" now?',
   'alert_delete_tag_title': 'Confirm Deletion',
-  'alert_delete_tag': 'Delete tag "$0" now?',
+  'alert_delete_tag': 'Note: All tags under this repository which are associated with this image will be deleted too.<br/><br/>Delete tag "$0" now?',
   'close': 'Close',
   'ok': 'OK',
   'welcome': 'Welcome to Harbor!',
diff --git a/static/resources/js/services/i18n/locale_messages_zh-CN.js b/static/resources/js/services/i18n/locale_messages_zh-CN.js
index 98bc435bb..95b8de8d4 100644
--- a/static/resources/js/services/i18n/locale_messages_zh-CN.js
+++ b/static/resources/js/services/i18n/locale_messages_zh-CN.js
@@ -138,7 +138,7 @@ var locale_messages = {
   'alert_delete_repo': '即将删除镜像仓库下的所有标签，镜像空间将在垃圾回收过程中释放。<br/>' +
       '<br/>是否删除镜像仓库 "$0" ?',
   'alert_delete_tag_title': '确认删除',
-  'alert_delete_tag': '删除镜像标签 "$0" ?',
+  'alert_delete_tag': '注意：此镜像仓库下其他指向该镜像的标签也将被删除。<br/><br/>删除镜像标签 "$0" ?',
   'close': '关闭',
   'ok': '确认',
   'welcome': '欢迎使用Harbor!',