diff --git a/components/lib/selectbutton/BaseSelectButton.vue b/components/lib/selectbutton/BaseSelectButton.vue
index c2018299f..590fa3792 100644
--- a/components/lib/selectbutton/BaseSelectButton.vue
+++ b/components/lib/selectbutton/BaseSelectButton.vue
@@ -14,7 +14,7 @@ export default {
         multiple: Boolean,
         unselectable: {
             type: Boolean,
-            default: false
+            default: true
         },
         allowEmpty: {
             type: Boolean,
diff --git a/components/lib/selectbutton/SelectButton.d.ts b/components/lib/selectbutton/SelectButton.d.ts
index e8c1a6369..31890a734 100755
--- a/components/lib/selectbutton/SelectButton.d.ts
+++ b/components/lib/selectbutton/SelectButton.d.ts
@@ -155,8 +155,8 @@ export interface SelectButtonProps {
      */
     dataKey?: string | undefined;
     /**
-     * Whether selection can not be cleared.
-     * @defaultValue false
+     * Whether selection can be cleared.
+     * @defaultValue true
      * @deprecated Use 'allowEmpty' property instead.
      */
     unselectable?: boolean | undefined;
diff --git a/components/lib/selectbutton/SelectButton.vue b/components/lib/selectbutton/SelectButton.vue
index 08ea3fc7b..5da48a5f0 100755
--- a/components/lib/selectbutton/SelectButton.vue
+++ b/components/lib/selectbutton/SelectButton.vue
@@ -81,7 +81,7 @@ export default {
 
             let selected = this.isSelected(option);
 
-            if (selected && (this.unselectable || !this.allowEmpty)) {
+            if (selected && !(this.unselectable && this.allowEmpty)) {
                 return;
             }