diff --git a/src/sku/README.md b/src/sku/README.md
index 26723c7e0..bc4eb7758 100644
--- a/src/sku/README.md
+++ b/src/sku/README.md
@@ -161,6 +161,7 @@ Use [ref](https://vuejs.org/v2/api/#ref) to get Sku instance and call instance m
 | Name | Description | Attribute | Return value |
 |------|------|------|------|
 | getSkuData | Get current skuData | - | skuData |
+| resetSelectedSku | Reset selected sku to initial sku | - | - | 2.3.0 |
 
 ### Slots
 
diff --git a/src/sku/README.zh-CN.md b/src/sku/README.zh-CN.md
index 84f88b9e7..f5600e0ee 100644
--- a/src/sku/README.zh-CN.md
+++ b/src/sku/README.zh-CN.md
@@ -162,9 +162,10 @@ export default {
 
 通过 [ref](https://cn.vuejs.org/v2/api/#ref) 可以获取到 Sku 实例并调用实例方法
 
-| 方法名 | 说明 | 参数 | 返回值 |
-|------|------|------|------|
-| getSkuData | 获取当前 skuData | - | skuData |
+| 方法名 | 说明 | 参数 | 返回值 | 版本 |
+|------|------|------|------|------|
+| getSkuData | 获取当前 skuData | - | skuData | - |
+| resetSelectedSku | 重置选中规格到初始状态 | - | - | 2.3.0 |
 
 ### Slots
 
diff --git a/src/sku/Sku.js b/src/sku/Sku.js
index 0f5710bec..c11a344c9 100644
--- a/src/sku/Sku.js
+++ b/src/sku/Sku.js
@@ -106,7 +106,7 @@ export default createComponent({
         }
 
         if (this.resetSelectedSkuOnHide) {
-          this.resetSelectedSku(this.skuTree);
+          this.resetSelectedSku();
         }
       }
     },
@@ -119,7 +119,7 @@ export default createComponent({
 
     initialSku() {
       this.resetStepper();
-      this.resetSelectedSku(this.skuTree);
+      this.resetSelectedSku();
     },
   },
 
@@ -267,7 +267,7 @@ export default createComponent({
     skuEventBus.$on('sku:buy', this.onBuy);
 
     this.resetStepper();
-    this.resetSelectedSku(this.skuTree);
+    this.resetSelectedSku();
 
     // 组件初始化后的钩子，抛出skuEventBus
     this.$emit('after-sku-create', skuEventBus);
@@ -289,16 +289,17 @@ export default createComponent({
       }
     },
 
-    resetSelectedSku(skuTree) {
+    // @exposed-api
+    resetSelectedSku() {
       this.selectedSku = {};
 
       // 重置 selectedSku
-      skuTree.forEach(item => {
+      this.skuTree.forEach(item => {
         this.selectedSku[item.k_s] = this.initialSku[item.k_s] || UNSELECTED_SKU_VALUE_ID;
       });
 
       // 只有一个 sku 规格值时默认选中
-      skuTree.forEach(item => {
+      this.skuTree.forEach(item => {
         const key = item.k_s;
         const valueId = item.v[0].id;
         if (
@@ -451,6 +452,7 @@ export default createComponent({
       }
     },
 
+    // @exposed-api
     getSkuData() {
       return {
         goodsId: this.goodsId,
diff --git a/src/sku/demo/data.js b/src/sku/demo/data.ts
similarity index 97%
rename from src/sku/demo/data.js
rename to src/sku/demo/data.ts
index c7674f10b..22594d2a8 100644
--- a/src/sku/demo/data.js
+++ b/src/sku/demo/data.ts
@@ -1,4 +1,4 @@
-export default {
+export const skuData = {
   goods_id: '946755',
   quota: 15,
   quota_used: 0,
@@ -181,3 +181,9 @@ export default {
     ]
   }
 };
+
+export const initialSku = {
+  s1: '30349',
+  s2: '1193',
+  selectedNum: 3
+};
diff --git a/src/sku/demo/index.vue b/src/sku/demo/index.vue
index b64802f40..e1e7d6a32 100644
--- a/src/sku/demo/index.vue
+++ b/src/sku/demo/index.vue
@@ -150,7 +150,7 @@
 </template>
 
 <script>
-import skuData from './data';
+import { skuData, initialSku } from './data';
 import { LIMIT_TYPE } from '../constants';
 
 export default {
@@ -173,17 +173,14 @@ export default {
 
   data() {
     this.skuData = skuData;
+    this.initialSku = initialSku;
+
     return {
       showBase: false,
       showCustom: false,
       showStepper: false,
       showSoldout: false,
       closeOnClickOverlay: true,
-      initialSku: {
-        s1: '30349',
-        s2: '1193',
-        selectedNum: 3
-      },
       customSkuValidator: () => '请选择xxx',
       customStepperConfig: {
         quotaText: '单次限购100件',
diff --git a/src/sku/test/index.spec.js b/src/sku/test/index.spec.js
new file mode 100644
index 000000000..911e829bb
--- /dev/null
+++ b/src/sku/test/index.spec.js
@@ -0,0 +1,30 @@
+import { mount } from '../../../test';
+import Sku from '..';
+import { skuData, initialSku } from '../demo/data';
+
+test('resetSelectedSku method', () => {
+  skuData.sku.messages = [];
+
+  const wrapper = mount(Sku, {
+    propsData: {
+      value: true,
+      initialSku,
+      sku: skuData.sku,
+      quota: skuData.quota,
+      goods: skuData.goods_info,
+      goodsId: skuData.goods_id,
+      quotaUsed: skuData.quota_used,
+      hideStock: skuData.sku.hide_stock,
+      startSaleNum: skuData.start_sale_num
+    }
+  });
+
+  wrapper.find('.van-button--danger').trigger('click');
+  expect(wrapper.emitted('buy-clicked').length).toEqual(1);
+
+  wrapper.setProps({ initialSku: {} });
+  wrapper.vm.resetSelectedSku();
+
+  wrapper.find('.van-button--danger').trigger('click');
+  expect(wrapper.emitted('buy-clicked').length).toEqual(1);
+});