diff --git a/packages/bigscreen/designer/components/SourceData.vue b/packages/bigscreen/designer/components/SourceData.vue
index d2280f0d..b116f15d 100644
--- a/packages/bigscreen/designer/components/SourceData.vue
+++ b/packages/bigscreen/designer/components/SourceData.vue
@@ -66,6 +66,7 @@
             </el-form-item>
             <el-form-item v-if="form.type === '1'" label="sql语句" style="width: 100%;" prop="description" :rules="[{ required: true, message: '请输入sql语句', trigger: 'blur' }]">
               <el-input
+                :rows="8"
                 size="small"
                 type="textarea"
                 placeholder="请输入数据源描述"