diff --git a/packages/bigscreen/designer/viewport.vue b/packages/bigscreen/designer/viewport.vue
index 7ad4437e..385d8d94 100644
--- a/packages/bigscreen/designer/viewport.vue
+++ b/packages/bigscreen/designer/viewport.vue
@@ -125,8 +125,8 @@
           <h2>页面设置</h2>
           <div class="layout-config__group">
             <config-item label="屏幕大小">
-              <el-input-number size="mini" :min="0" v-model="bigscreenWidth" disabled controls-position="right"/>
-              <el-input-number size="mini" :min="0" v-model="bigscreenHeight" disabled controls-position="right"/>
+              <el-input-number size="mini" :min="0" v-model="bigscreenWidth" controls-position="right"/>
+              <el-input-number size="mini" :min="0" v-model="bigscreenHeight" controls-position="right"/>
             </config-item>
             <config-item label="屏幕标题">
               <el-input v-model="dashboard.title" size="mini"/>