diff --git a/src/views/govern/device/control/tabs/trend.vue b/src/views/govern/device/control/tabs/trend.vue
index dd12018..39cc91d 100644
--- a/src/views/govern/device/control/tabs/trend.vue
+++ b/src/views/govern/device/control/tabs/trend.vue
@@ -17,11 +17,11 @@
                     </el-form-item>
 
                   
-                        <el-form-item  v-for="(item, index) in countData" :key="index" :label="item.name + '谐波次数'"
-                            label-width="180px" v-show="item.countOptions.length != 0">
+                        <el-form-item class="history_count"  v-for="(item, index) in countData" :key="index" :label="item.name + '谐波次数'"
+                          v-show="item.countOptions.length != 0">
                             <!--   v-if="item.countOptions.length != 0" -->
                             <el-select v-model="item.count" @change="onCountChange($event, index)"
-                                placeholder="请选择谐波次数">
+                                placeholder="请选择谐波次数" style="width: 100px" >
                                 <el-option v-for="vv in item.countOptions" :key="vv" :label="vv"
                                     :value="vv"></el-option>
                             </el-select>
@@ -638,4 +638,10 @@ defineExpose({ getTrendRequest })
     // flex: 1;
     margin-top: 10px;
 }
+.history_count{
+    .el-select {
+    min-width: 100px;
+}
+}
+
 </style>