diff --git a/docs/markdown/migrate-from-v2.zh-CN.md b/docs/markdown/migrate-from-v2.zh-CN.md
index 0b3df3f62..1c483df41 100644
--- a/docs/markdown/migrate-from-v2.zh-CN.md
+++ b/docs/markdown/migrate-from-v2.zh-CN.md
@@ -134,6 +134,7 @@ export default {
 };
 ```
 
-### Picker 参数调整
+### Picker
 
-在 Picker 的级联选择下，confirm/change 事件返回的回调参数将包含为完整的选项对象。
+- 移除 change 事件的第一个参数（picker 实例）
+- 级联选择下，confirm/change 事件返回的回调参数将包含为完整的选项对象。
diff --git a/src/picker/README.md b/src/picker/README.md
index 473aecfc4..a39ca5551 100644
--- a/src/picker/README.md
+++ b/src/picker/README.md
@@ -42,7 +42,7 @@ export default {
     onConfirm(value, index) {
       Toast(`Value: ${value}, Index: ${index}`);
     },
-    onChange(picker, value, index) {
+    onChange(value, index) {
       Toast(`Value: ${value}, Index: ${index}`);
     },
     onCancel() {
@@ -149,7 +149,13 @@ export default {
 ### Set Column Values
 
 ```html
-<van-picker show-toolbar title="Title" :columns="columns" @change="onChange" />
+<van-picker
+  ref="picker"
+  show-toolbar
+  title="Title"
+  :columns="columns"
+  @change="onChange"
+/>
 ```
 
 ```js
@@ -165,8 +171,8 @@ export default {
     };
   },
   methods: {
-    onChange(picker, values) {
-      picker.setColumnValues(1, states[values[0]]);
+    onChange(values) {
+      this.$refs.picker.setColumnValues(1, states[values[0]]);
     },
   },
 };
diff --git a/src/picker/README.zh-CN.md b/src/picker/README.zh-CN.md
index f0fdb309a..013388c0b 100644
--- a/src/picker/README.zh-CN.md
+++ b/src/picker/README.zh-CN.md
@@ -50,7 +50,7 @@ export default {
     onConfirm(value, index) {
       Toast(`当前值：${value}, 当前索引：${index}`);
     },
-    onChange(picker, value, index) {
+    onChange(value, index) {
       Toast(`当前值：${value}, 当前索引：${index}`);
     },
     onCancel() {
@@ -171,7 +171,7 @@ export default {
 通过 Picker 上的实例方法可以更灵活地控制选择器，比如使用`setColumnValues`方法实现多列联动
 
 ```html
-<van-picker show-toolbar :columns="columns" @change="onChange" />
+<van-picker ref="picker" show-toolbar :columns="columns" @change="onChange" />
 ```
 
 ```js
@@ -187,8 +187,8 @@ export default {
     };
   },
   methods: {
-    onChange(picker, values) {
-      picker.setColumnValues(1, cities[values[0]]);
+    onChange(values) {
+      this.$refs.picker.setColumnValues(1, cities[values[0]]);
     },
   },
 };
@@ -288,7 +288,7 @@ export default {
 | --- | --- | --- |
 | confirm | 点击完成按钮时触发 | 单列：选中值，选中值对应的索引<br>多列：所有列选中值，所有列选中值对应的索引 |
 | cancel | 点击取消按钮时触发 | 单列：选中值，选中值对应的索引<br>多列：所有列选中值，所有列选中值对应的索引 |
-| change | 选项改变时触发 | 单列：Picker 实例，选中值，选中值对应的索引<br>多列：Picker 实例，所有列选中值，当前列对应的索引 |
+| change | 选项改变时触发 | 单列：选中值，选中值对应的索引<br>多列：所有列选中值，当前列对应的索引 |
 
 ### Slots
 
diff --git a/src/picker/demo/index.vue b/src/picker/demo/index.vue
index 2f4fb4889..9d2f1243a 100644
--- a/src/picker/demo/index.vue
+++ b/src/picker/demo/index.vue
@@ -47,6 +47,7 @@
 
     <demo-block card :title="t('setColumnValues')">
       <van-picker
+        ref="picker"
         show-toolbar
         :title="t('title')"
         :columns="columns"
@@ -173,8 +174,8 @@ export default {
       this.$toast(this.t('toastContent', value, index));
     },
 
-    onChange2(picker, values) {
-      picker.setColumnValues(1, this.t('column3')[values[0]]);
+    onChange2(values) {
+      this.$refs.picker.setColumnValues(1, this.t('column3')[values[0]]);
     },
 
     onConfirm(value, index) {
diff --git a/src/picker/index.js b/src/picker/index.js
index f70aac9f8..0e4153dc8 100644
--- a/src/picker/index.js
+++ b/src/picker/index.js
@@ -137,12 +137,11 @@ export default createComponent({
       if (this.dataType === 'text') {
         this.$emit(
           'change',
-          this,
           this.getColumnValue(0),
           this.getColumnIndex(0)
         );
       } else {
-        this.$emit('change', this, this.getValues(), columnIndex);
+        this.$emit('change', this.getValues(), columnIndex);
       }
     },