diff --git a/src/components/table/nz-row-expand-icon.component.ts b/src/components/table/nz-row-expand-icon.component.ts
index 3ed26be3db1..6eeba3d9acc 100644
--- a/src/components/table/nz-row-expand-icon.component.ts
+++ b/src/components/table/nz-row-expand-icon.component.ts
@@ -13,17 +13,22 @@ import {
 })
 export class NzRowExpandIconComponent {
   @Input() nzExpand = false;
-  @Input() @HostBinding('class.ant-table-row-spaced') nzShowExpand = false;
+  @Input() nzShowExpand = true;
   @Output() nzExpandChange = new EventEmitter();
 
+  @HostBinding('class.ant-table-row-spaced')
+  get hidden() {
+    return !this.nzShowExpand;
+  }
+
   @HostBinding(`class.ant-table-row-expanded`)
   get expanded() {
-    return this.nzExpand && !this.nzShowExpand;
+    return this.nzShowExpand && this.nzExpand;
   }
 
   @HostBinding(`class.ant-table-row-collapsed`)
   get collapsed() {
-    return !this.nzExpand && !this.nzShowExpand;
+    return this.nzShowExpand && !this.nzExpand;
   }
 
   @HostBinding(`class.ant-table-row-expand-icon`) _expandIcon = true;
diff --git a/src/showcase/nz-demo-table/nz-demo-table-expand-tree.component.ts b/src/showcase/nz-demo-table/nz-demo-table-expand-tree.component.ts
index eac77643339..9c0566ff79c 100644
--- a/src/showcase/nz-demo-table/nz-demo-table-expand-tree.component.ts
+++ b/src/showcase/nz-demo-table/nz-demo-table-expand-tree.component.ts
@@ -17,7 +17,7 @@ import { Component, OnInit } from '@angular/core';
             <tr nz-tbody-tr *ngIf="(item.parent&&item.parent.expand)||!(item.parent)">
               <td nz-td>
                 <nz-row-indent [nzIndentSize]="item.level"></nz-row-indent>
-                <nz-row-expand-icon [(nzExpand)]="item.expand" (nzExpandChange)="collapse(expandDataCache[data.key],item,$event)" [nzShowExpand]="!item.children"></nz-row-expand-icon>
+                <nz-row-expand-icon [(nzExpand)]="item.expand" (nzExpandChange)="collapse(expandDataCache[data.key],item,$event)" [nzShowExpand]="!!item.children"></nz-row-expand-icon>
                 {{item.name}}
               </td>
               <td nz-td>{{item.age}}</td>
diff --git a/src/showcase/nz-demo-table/nz-demo-table.html b/src/showcase/nz-demo-table/nz-demo-table.html
index 425ed12dea2..7e23f32a0a6 100644
--- a/src/showcase/nz-demo-table/nz-demo-table.html
+++ b/src/showcase/nz-demo-table/nz-demo-table.html
@@ -441,9 +441,9 @@ <h3>
         </tr>
         <tr>
           <td>nzShowExpand</td>
-          <td>是否展示展开按钮</td>
+          <td>是否显示此 展开/收缩 按钮</td>
           <td>Boolean</td>
-          <td>false</td>
+          <td>true</td>
         </tr>
       </tbody>
     </table>