diff --git a/components/select/nz-select-top-control.component.html b/components/select/nz-select-top-control.component.html
index 49cc4cc096f..592ad5c4cc0 100644
--- a/components/select/nz-select-top-control.component.html
+++ b/components/select/nz-select-top-control.component.html
@@ -1,7 +1,7 @@
 <ng-template #inputTemplate>
   <input
     #inputElement
-    autocomplete="off"
+    autocomplete="something-new"
     class="ant-select-search__field"
     (compositionstart)="isComposing = true"
     (compositionend)="isComposing = false"
@@ -30,7 +30,6 @@
   <!--show search-->
   <div
     *ngIf="nzShowSearch"
-    [style.display]="searchDisplay"
     class="ant-select-search ant-select-search--inline">
     <div class="ant-select-search__field__wrap">
       <ng-template [ngTemplateOutlet]="inputTemplate"></ng-template>
diff --git a/components/select/nz-select-top-control.component.ts b/components/select/nz-select-top-control.component.ts
index 78c3855b8b7..5c8db31ab23 100644
--- a/components/select/nz-select-top-control.component.ts
+++ b/components/select/nz-select-top-control.component.ts
@@ -106,10 +106,6 @@ export class NzSelectTopControlComponent {
     return this.inputValue || this.isComposing || this.nzListOfSelectedValue.length ? 'none' : 'block';
   }
 
-  get searchDisplay(): string {
-    return this.nzOpen ? 'block' : 'none';
-  }
-
   get selectedValueDisplay(): { [ key: string ]: string } {
     let showSelectedValue = false;
     let opacity = 1;