diff --git a/src/components/DeleteBatch.vue b/src/components/DeleteBatch.vue
index ee08d35..6706eb8 100644
--- a/src/components/DeleteBatch.vue
+++ b/src/components/DeleteBatch.vue
@@ -142,7 +142,7 @@ export default {
     margin-top: 10px;
   }
   .del-batch-key-list-ol {
-    min-height: calc(50vh);
+    min-height: calc(100vh - 272px);
     overflow: auto;
     padding-left: 10px;
     list-style-position: inside;
diff --git a/src/components/KeyListTree.vue b/src/components/KeyListTree.vue
index a332e56..a33a8e9 100644
--- a/src/components/KeyListTree.vue
+++ b/src/components/KeyListTree.vue
@@ -142,8 +142,13 @@ export default {
           clipboard.writeText(this.rightClickNode.name);
           break;
         }
-        // del single key
+        // del single key["delete" in the key right menu]
         case 'delete': {
+          // del batch instead of single when multi operating
+          if (this.multiOperating) {
+            return this.deleteBatch();
+          }
+
           let keyBuffer = Buffer.from(this.rightClickNode.nameBuffer.data);
 
           this.client.del(keyBuffer).then((reply) => {