diff --git a/src/views/iot/runReport/index.vue b/src/views/iot/runReport/index.vue
index 15d77d08..370374a7 100644
--- a/src/views/iot/runReport/index.vue
+++ b/src/views/iot/runReport/index.vue
@@ -91,11 +91,27 @@
         min-width="140px"
       /> -->
       <el-table-column
-        :label="t('DataCollection.RunReport.tableUtilizationRateColumn')"
         align="center"
         prop="utilizationRate"
         min-width="120px"
-      />
+      >
+        <template #header>
+          <span>{{ t('DataCollection.RunReport.tableUtilizationRateColumn') }}</span>
+          <el-tooltip placement="top" :offset="10">
+            <template #content>
+              <div style="white-space: pre-line;">
+                开机率 = 在线时间 / 总的时间<br/>
+                在线时间 = 运行时间 + 空闲时间 + 故障时间<br/>
+                稼动率 = 运行时间 / 在线时间<br/>
+                开机率 =（运行时间 + 空闲时间 + 故障时间）/ 总的时间
+              </div>
+            </template>
+            <el-icon style="margin-left: 4px; cursor: pointer; color: #909399; vertical-align: middle;">
+              <QuestionFilled />
+            </el-icon>
+          </el-tooltip>
+        </template>
+      </el-table-column>
       <el-table-column
         :label="t('DataCollection.RunReport.tablePowerOnRateColumn')"
         align="center"
@@ -125,6 +141,7 @@
 import dayjs from 'dayjs'
 import download from '@/utils/download'
 import { DeviceOperationRecordApi, type DeviceOperationRecordVO, type DeviceOperationRecordPageParams } from '@/api/iot/deviceOperationRecord'
+import {QuestionFilled} from "@element-plus/icons-vue";
 
 defineOptions({ name: 'IotRunReport' })