diff --git a/src/components/KeyHeader.vue b/src/components/KeyHeader.vue
index bd7a3a5d9..370325b0d 100644
--- a/src/components/KeyHeader.vue
+++ b/src/components/KeyHeader.vue
@@ -123,6 +123,21 @@
         });
       },
       ttlKey: function () {
+        // ttl <= 0
+        if (this.keyTTL <= 0) {
+          this.$confirm(
+            this.$t('message.ttl_delete', {key: this.myRedisKey}),
+            {type: 'warning'}
+          ).then(() => {
+            this.setTTL();
+          }).catch(() => {});
+        }
+
+        else {
+          this.setTTL();
+        }
+      },
+      setTTL() {
         console.log('ttl key ' + this.myRedisKey + ' ttl is ' + this.keyTTL);
 
         let client = this.$util.get('client');
diff --git a/src/i18n/langs/cn.js b/src/i18n/langs/cn.js
index 53963be31..484fece94 100644
--- a/src/i18n/langs/cn.js
+++ b/src/i18n/langs/cn.js
@@ -40,6 +40,7 @@ const cn = {
     confirm_to_delete_connection: '确认删除连接？',
     connection_exists: '连接配置已存在',
     close_to_edit_connection: '编辑前必须关闭连接，要继续么',
+    ttl_delete: '设置TTL<=0将删除该key，是否确认？',
   }
 };
 
diff --git a/src/i18n/langs/en.js b/src/i18n/langs/en.js
index e17a0d144..3d86b3028 100644
--- a/src/i18n/langs/en.js
+++ b/src/i18n/langs/en.js
@@ -40,6 +40,7 @@ const en = {
     confirm_to_delete_connection: 'Confirm To Delete Connection ?',
     connection_exists: 'Connection Config Already Exists',
     close_to_edit_connection: 'You Must Close The Connection Before Editing',
+    ttl_delete: 'Set TTL<=0 Will Delete The Key Directly',
   }
 };