diff --git a/src/views/iot/deviceParamAnalysis/index.vue b/src/views/iot/deviceParamAnalysis/index.vue
index e34fa0a5..2508c84b 100644
--- a/src/views/iot/deviceParamAnalysis/index.vue
+++ b/src/views/iot/deviceParamAnalysis/index.vue
@@ -35,12 +35,11 @@
             <el-form-item :label="t('DataCollection.DeviceParamAnalysis.formTimeLabel')">
               <el-date-picker
                 v-model="group.dateRange"
-                type="daterange"
+                type="datetimerange"
                 :start-placeholder="t('DataCollection.DeviceParamAnalysis.formTimeStartPlaceholder')"
                 :end-placeholder="t('DataCollection.DeviceParamAnalysis.formTimeEndPlaceholder')"
-                value-format="YYYY-MM-DD"
+                value-format="YYYY-MM-DD HH:mm:ss"
                 :shortcuts="dateShortcuts"
-                :default-time="[new Date('1 00:00:00'), new Date('1 23:59:59')]"
                 class="!w-360px"
               />
             </el-form-item>
@@ -133,9 +132,9 @@ const treeProps = { children: 'children', label: 'label', disabled: 'disabled' }
 const treeData = ref<DeviceTreeNode[]>([])
 
 const buildDefaultDateRange = (): [string, string] => {
-  const end = dayjs().endOf('day')
-  const start = end.subtract(6, 'day').startOf('day')
-  return [start.format('YYYY-MM-DD'), end.format('YYYY-MM-DD')]
+  const end = dayjs()
+  const start = end.subtract(2, 'hour')
+  return [start.format('YYYY-MM-DD HH:mm:ss'), end.format('YYYY-MM-DD HH:mm:ss')]
 }
 
 const dateShortcuts = [