diff --git a/packages/picker/PickerColumn.vue b/packages/picker/PickerColumn.vue
index 2e5d3d7d9..1291406da 100644
--- a/packages/picker/PickerColumn.vue
+++ b/packages/picker/PickerColumn.vue
@@ -109,7 +109,7 @@ export default create({
     frameStyle() {
       return {
         height: this.itemHeight + 'px'
-      }
+      };
     },
 
     currentValue() {
@@ -168,7 +168,7 @@ export default create({
     },
 
     setValue(value) {
-      const { options, valueKey } = this;
+      const { options } = this;
       for (let i = 0; i < options.length; i++) {
         if (this.getOptionText(options[i]) === value) {
           this.setIndex(i);
diff --git a/packages/picker/index.vue b/packages/picker/index.vue
index c2579626a..a0bc78fd0 100644
--- a/packages/picker/index.vue
+++ b/packages/picker/index.vue
@@ -7,7 +7,7 @@
         <div class="van-picker__title" v-if="title" v-text="title" />
       </slot>
     </div>
-    <div class="van-picker__columns">
+    <div class="van-picker__columns" @touchmove.prevent>
       <picker-column
         v-for="(item, index) in currentColumns"
         :key="index"
@@ -47,7 +47,7 @@ export default create({
     columns: {
       type: Array,
       default: () => []
-    },
+    }
   },
 
   data() {
@@ -64,7 +64,7 @@ export default create({
   watch: {
     columns() {
       this.initColumns();
-    },
+    }
   },
 
   methods: {