diff --git a/src/views/iot/runoverview/components/OperationTimelineChart.vue b/src/views/iot/runoverview/components/OperationTimelineChart.vue
index a5ec5dd2..670b1f12 100644
--- a/src/views/iot/runoverview/components/OperationTimelineChart.vue
+++ b/src/views/iot/runoverview/components/OperationTimelineChart.vue
@@ -38,7 +38,7 @@
         </div>
       </div>
 
-      <div v-for="row in pagedRows" :key="row.id" class="timeline-table__row">
+      <div v-for="row in timelineRows" :key="row.id" class="timeline-table__row">
         <div class="timeline-table__meta">
           <div class="timeline-table__device">{{ row.name }}</div>
           <div class="timeline-table__rate">{{ row.utilizationRate.toFixed(2) }}%</div>
@@ -116,12 +116,20 @@ const legendItems = computed(() => [
   { status: 'offline' as const, color: statusColors.offline, label: t('DataCollection.RunOverview.legend.offline') }
 ])
 
-const hourTicks = Array.from({ length: 13 }, (_, index) => `${String(index * 2).padStart(2, '0')}:00`)
-
-const pagedRows = computed(() => {
-  const start = (props.pageNo - 1) * props.pageSize
-  return props.rows.slice(start, start + props.pageSize)
-})
+const hourTicks = Array.from({ length: 24 }, (_, index) => `${String(index).padStart(2, '0')}:00`)
+
+const timelineRows = computed(() =>
+  props.rows.map((row) => ({
+    ...row,
+    segments: (row.segments || []).filter(
+      (segment) =>
+        !!statusColors[segment.status] &&
+        Number.isFinite(segment.startHour) &&
+        Number.isFinite(segment.endHour) &&
+        segment.endHour > segment.startHour
+    )
+  }))
+)
 </script>
 
 <style scoped lang="scss">
@@ -239,7 +247,6 @@ const pagedRows = computed(() => {
 
 .timeline-track {
   height: 20px;
-  background: #f5f7fb;
   border-radius: 999px;
   overflow: hidden;
 }
diff --git a/src/views/iot/runoverview/index.vue b/src/views/iot/runoverview/index.vue
index 7d70e47d..3363390f 100644
--- a/src/views/iot/runoverview/index.vue
+++ b/src/views/iot/runoverview/index.vue
@@ -56,7 +56,7 @@ import OverviewFilterBar from './components/OverviewFilterBar.vue'
 import OverviewMetricCards from './components/OverviewMetricCards.vue'
 import OperationTimelineChart from './components/OperationTimelineChart.vue'
 import StatusDistributionChart from './components/StatusDistributionChart.vue'
-import { buildDefaultQueryParams, buildRunOverviewTimelineData } from './mock'
+import { buildDefaultQueryParams } from './mock'
 import type {
   OrganizationFilterItem,
   OrganizationTreeOption,
@@ -165,19 +165,20 @@ const currentDeviceIds = computed(() =>
 const buildOverviewRequestParams = () => ({
   ids: currentDeviceIds.value.join(','),
   startTime: queryParams.value.timeRange[0],
-  endTime: queryParams.value.timeRange[1]
+  endTime: queryParams.value.timeRange[1],
+  timelinePageNo: pageNo.value,
+  timelinePageSize: pageSize.value
 })
 
 const refreshData = async () => {
   const response = await DeviceOperationOverviewApi.getRunOverview(buildOverviewRequestParams())
-  const timelineData = buildRunOverviewTimelineData(queryParams.value, deviceOptions.value)
   overviewData.value = {
     metrics: response?.metrics || [],
     hourlyStatus: response?.hourlyStatus || [],
     summary: response?.summary || [],
     summaryTotalHours: response?.summaryTotalHours || 0,
-    timelineRows: timelineData.timelineRows,
-    totalDevices: timelineData.totalDevices
+    timelineRows: response?.timelineRows || [],
+    totalDevices: response?.totalDevices || 0
   }
   const maxPage = Math.max(1, Math.ceil(overviewData.value.totalDevices / pageSize.value))
   if (pageNo.value > maxPage) pageNo.value = maxPage
@@ -190,7 +191,6 @@ const handleQuickRangeChange = (key: QuickRangeKey) => {
     timeRange: createDateRangeByQuickKey(key)
   }
   pageNo.value = 1
-  void refreshData()
 }
 
 const handleQuery = () => {
@@ -202,7 +202,6 @@ const resetQuery = () => {
   queryParams.value = buildDefaultQueryParams()
   pageNo.value = 1
   pageSize.value = 10
-  void refreshData()
 }
 
 const handleExport = () => {
@@ -212,8 +211,13 @@ const handleExport = () => {
 const handlePageSizeChange = (size: number) => {
   pageSize.value = size
   pageNo.value = 1
+  void refreshData()
 }
 
+watch(pageNo, () => {
+  void refreshData()
+})
+
 const getOrganizationOptions = async () => {
   const data = await OrganizationApi.getOrganizationList()
   organizationList.value = Array.isArray(data)
@@ -251,7 +255,6 @@ watch(
 
 onMounted(async () => {
   await getOrganizationOptions()
-  await refreshData()
 })
 </script>
 
diff --git a/src/views/iot/runoverview/mock.ts b/src/views/iot/runoverview/mock.ts
index b5468582..7afde6ea 100644
--- a/src/views/iot/runoverview/mock.ts
+++ b/src/views/iot/runoverview/mock.ts
@@ -1,59 +1,8 @@
 import dayjs from 'dayjs'
-import type { DeviceTimelineRow, OverviewOption, RunOverviewData, RunOverviewQueryParams, RunStatus } from './components/types'
+import type { RunOverviewQueryParams } from './components/types'
 
 const DATE_TIME_FORMAT = 'YYYY-MM-DD HH:mm:ss'
 
-const FALLBACK_DEVICE_OPTIONS: OverviewOption[] = [
-  { label: '模拟设备01', value: 'device-01' },
-  { label: '模拟设备02', value: 'device-02' },
-  { label: '模拟设备03', value: 'device-03' },
-  { label: '模拟设备04', value: 'device-04' },
-  { label: '模拟设备05', value: 'device-05' },
-  { label: '模拟设备06', value: 'device-06' },
-  { label: '模拟设备07', value: 'device-07' },
-  { label: '模拟设备08', value: 'device-08' },
-  { label: '模拟设备09', value: 'device-09' },
-  { label: '模拟设备10', value: 'device-10' },
-  { label: '模拟设备11', value: 'device-11' },
-  { label: '模拟设备12', value: 'device-12' },
-  { label: '模拟设备13', value: 'device-13' }
-]
-
-const UTILIZATION_RATES = [82.35, 76.12, 68.54, 75.63, 72.18, 91.24, 65.32, 78.44, 71.05, 83.67, 69.18, 87.42, 74.56]
-const TIMELINE_OFFSETS = [0, -0.3, 0.8, -0.5, 0.45, 1.05, -1.1, 0.25, -0.75, 0.6, -0.2, 1.2, -0.45]
-
-const BASE_SEGMENTS = [
-  { status: 'running' as const, startHour: 0, endHour: 2.7 },
-  { status: 'standby' as const, startHour: 2.7, endHour: 3.1 },
-  { status: 'running' as const, startHour: 3.1, endHour: 6.6 },
-  { status: 'standby' as const, startHour: 6.6, endHour: 7.15 },
-  { status: 'running' as const, startHour: 7.15, endHour: 13.9 },
-  { status: 'standby' as const, startHour: 13.9, endHour: 14.25 },
-  { status: 'offline' as const, startHour: 14.25, endHour: 14.95 },
-  { status: 'running' as const, startHour: 14.95, endHour: 17.45 },
-  { status: 'fault' as const, startHour: 17.45, endHour: 18.15 },
-  { status: 'standby' as const, startHour: 18.15, endHour: 18.8 },
-  { status: 'running' as const, startHour: 18.8, endHour: 20.55 },
-  { status: 'standby' as const, startHour: 20.55, endHour: 20.95 },
-  { status: 'running' as const, startHour: 20.95, endHour: 22.25 },
-  { status: 'offline' as const, startHour: 22.25, endHour: 23.05 },
-  { status: 'running' as const, startHour: 23.05, endHour: 23.7 },
-  { status: 'offline' as const, startHour: 23.7, endHour: 24 }
-]
-
-const shiftTimeline = (segments: Array<{ status: RunStatus; startHour: number; endHour: number }>, offset: number) =>
-  segments.map((segment, index) => {
-    let nextStart = segment.startHour + offset
-    let nextEnd = segment.endHour + offset
-    if (index === 0 && nextStart < 0) nextStart = 0
-    if (index === segments.length - 1 && nextEnd > 24) nextEnd = 24
-    return {
-      ...segment,
-      startHour: Math.max(0, Math.min(24, Number(nextStart.toFixed(2)))),
-      endHour: Math.max(0, Math.min(24, Number(nextEnd.toFixed(2))))
-    }
-  })
-
 export const buildDefaultQueryParams = (): RunOverviewQueryParams => {
   const start = dayjs().startOf('day')
   const end = dayjs().endOf('day')
@@ -64,23 +13,3 @@ export const buildDefaultQueryParams = (): RunOverviewQueryParams => {
     timeRange: [start.format(DATE_TIME_FORMAT), end.format(DATE_TIME_FORMAT)]
   }
 }
-
-const toTimelineRows = (deviceOptions: OverviewOption[]): DeviceTimelineRow[] =>
-  deviceOptions.map((device, index) => ({
-    id: device.value,
-    name: device.label,
-    utilizationRate: UTILIZATION_RATES[index % UTILIZATION_RATES.length],
-    segments: shiftTimeline(BASE_SEGMENTS, TIMELINE_OFFSETS[index % TIMELINE_OFFSETS.length])
-  }))
-
-export const buildRunOverviewTimelineData = (
-  query: RunOverviewQueryParams,
-  deviceOptions: OverviewOption[] = FALLBACK_DEVICE_OPTIONS
-): Pick<RunOverviewData, 'timelineRows' | 'totalDevices'> => {
-  const rows = toTimelineRows(deviceOptions.length > 0 ? deviceOptions : FALLBACK_DEVICE_OPTIONS)
-  const filteredRows = query.deviceId.length > 0 ? rows.filter((row) => query.deviceId.includes(row.id)) : rows
-  return {
-    timelineRows: filteredRows,
-    totalDevices: filteredRows.length
-  }
-}