diff --git a/src/views/iot/deviceParamAnalysis/index.vue b/src/views/iot/deviceParamAnalysis/index.vue
index cf3bd5e0..cb36eed0 100644
--- a/src/views/iot/deviceParamAnalysis/index.vue
+++ b/src/views/iot/deviceParamAnalysis/index.vue
@@ -11,54 +11,66 @@
         />
         <div class="mt-12px">
           <el-tree
-ref="treeRef" v-loading="treeLoading" :data="treeData" :props="treeProps" node-key="id"
-            highlight-current @node-click="handleTreeNodeClick" />
+            ref="treeRef"
+            v-loading="treeLoading"
+            :data="treeData"
+            :props="treeProps"
+            node-key="id"
+            show-checkbox
+            check-strictly
+            @check="handleTreeCheck"
+          />
         </div>
       </ContentWrap>
     </el-col>
 
     <el-col :span="18" :xs="24">
-      <ContentWrap>
-        <el-form class="-mb-15px device-param-analysis-form" :inline="true" label-width="auto">
-          <el-form-item :label="t('DataCollection.DeviceParamAnalysis.formTimeLabel')">
-            <el-date-picker
-              v-model="dateRange"
-              type="daterange"
-              :start-placeholder="t('DataCollection.DeviceParamAnalysis.formTimeStartPlaceholder')"
-              :end-placeholder="t('DataCollection.DeviceParamAnalysis.formTimeEndPlaceholder')"
-              value-format="YYYY-MM-DD"
-              :shortcuts="dateShortcuts"
-              :default-time="[new Date('1 00:00:00'), new Date('1 23:59:59')]"
-              class="!w-360px"
+      <div class="analysis-groups">
+        <ContentWrap v-if="!selectedGroups.length">
+          <el-empty :description="t('DataCollection.DeviceParamAnalysis.emptySelectNodeDescription')" />
+        </ContentWrap>
+
+        <ContentWrap v-for="group in selectedGroups" :key="group.id">
+          <el-form class="-mb-15px device-param-analysis-form" :inline="true" label-width="auto">
+            <el-form-item :label="t('DataCollection.DeviceParamAnalysis.formTimeLabel')">
+              <el-date-picker
+                v-model="group.dateRange"
+                type="daterange"
+                :start-placeholder="t('DataCollection.DeviceParamAnalysis.formTimeStartPlaceholder')"
+                :end-placeholder="t('DataCollection.DeviceParamAnalysis.formTimeEndPlaceholder')"
+                value-format="YYYY-MM-DD"
+                :shortcuts="dateShortcuts"
+                :default-time="[new Date('1 00:00:00'), new Date('1 23:59:59')]"
+                class="!w-360px"
+              />
+            </el-form-item>
+            <el-form-item>
+              <el-button :disabled="group.chartLoading" @click="handleQuery(group)">
+                <Icon icon="ep:search" class="mr-5px" />
+                {{ t('DataCollection.DeviceParamAnalysis.searchButtonText') }}
+              </el-button>
+              <el-button :disabled="group.chartLoading" @click="resetQuery(group)">
+                <Icon icon="ep:refresh" class="mr-5px" />
+                {{ t('DataCollection.DeviceParamAnalysis.resetButtonText') }}
+              </el-button>
+            </el-form-item>
+          </el-form>
+
+          <el-alert :title="buildParamTitle(group.param)" type="info" :closable="false" class="mb-12px" />
+          <div v-loading="group.chartLoading">
+            <el-empty
+              v-if="group.chartState === 'empty'"
+              :description="t('DataCollection.DeviceParamAnalysis.emptyDescription')"
             />
-          </el-form-item>
-          <el-form-item>
-            <el-button :disabled="!selectedParam" @click="handleQuery">
-              <Icon icon="ep:search" class="mr-5px" />
-              {{ t('DataCollection.DeviceParamAnalysis.searchButtonText') }}
-            </el-button>
-            <el-button :disabled="!selectedParam" @click="resetQuery">
-              <Icon icon="ep:refresh" class="mr-5px" />
-              {{ t('DataCollection.DeviceParamAnalysis.resetButtonText') }}
-            </el-button>
-          </el-form-item>
-        </el-form>
-      </ContentWrap>
-
-      <ContentWrap>
-        <el-alert v-if="selectedParam" :title="selectedParamTitle" type="info" :closable="false" class="mb-12px" />
-        <div v-loading="chartLoading">
-          <el-empty
-            v-if="chartState === 'empty'"
-            :description="t('DataCollection.DeviceParamAnalysis.emptyDescription')"
-          />
-          <el-empty
-            v-else-if="!selectedParam"
-            :description="t('DataCollection.DeviceParamAnalysis.emptySelectNodeDescription')"
-          />
-          <EChart v-else-if="chartState === 'ready'" :key="chartRenderKey" :options="chartOption" height="70vh" />
-        </div>
-      </ContentWrap>
+            <EChart
+              v-else-if="group.chartState === 'ready'"
+              :key="group.chartRenderKey"
+              :options="buildChartOption(group)"
+              height="360px"
+            />
+          </div>
+        </ContentWrap>
+      </div>
     </el-col>
   </el-row>
 </template>
@@ -87,6 +99,7 @@ type DeviceTreeNode = {
   paramKey?: string
   unit?: string
   paramCount?: number
+  disabled?: boolean
 }
 
 type ApiTreeParameter = {
@@ -116,27 +129,15 @@ const message = useMessage()
 const treeRef = ref()
 const treeLoading = ref(false)
 const keyword = ref('')
-const treeProps = { children: 'children', label: 'label' }
+const treeProps = { children: 'children', label: 'label', disabled: 'disabled' }
 const treeData = ref<DeviceTreeNode[]>([])
 
-const selectedDeviceId = ref<number | undefined>(undefined)
-const selectedModelId = ref<number | undefined>(undefined)
-
-const selectedParam = ref<DeviceTreeNode | null>(null)
-const chartLoading = ref(false)
-const chartState = ref<'idle' | 'loading' | 'empty' | 'ready'>('idle')
-const chartXAxis = ref<string[]>([])
-const chartSeries = ref<{ name: string; data: Array<number | null> }[]>([])
-const chartRenderKey = ref(0)
-
 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 dateRange = ref<[string, string]>(buildDefaultDateRange())
-
 const dateShortcuts = [
   {
     text: t('DataCollection.DeviceParamAnalysis.shortcutLast7Days'),
@@ -172,18 +173,67 @@ const dateShortcuts = [
   }
 ]
 
-const selectedParamTitle = computed(() => {
-  const param = selectedParam.value
-  if (!param) return ''
+type ChartState = 'idle' | 'loading' | 'empty' | 'ready'
+
+type SelectedGroup = {
+  id: string
+  param: DeviceTreeNode
+  deviceId?: number
+  modelId?: number
+  dateRange: [string, string]
+  requestSeq: number
+  chartLoading: boolean
+  chartState: ChartState
+  chartXAxis: string[]
+  chartSeries: Array<{ name: string; data: Array<number | null> }>
+  chartRenderKey: number
+}
+
+const selectedGroups = ref<SelectedGroup[]>([])
+
+let keywordTimer: number | undefined
+const handleKeywordChange = () => {
+  if (keywordTimer) window.clearTimeout(keywordTimer)
+  keywordTimer = window.setTimeout(() => {
+    keywordTimer = undefined
+    loadTree()
+  }, 300)
+}
+
+const toFiniteId = (value: any): number | undefined => {
+  if (typeof value === 'number') return Number.isFinite(value) ? value : undefined
+  if (typeof value === 'string') {
+    if (/^\d+$/.test(value.trim())) return Number(value)
+    const n = Number(value)
+    return Number.isFinite(n) ? n : undefined
+  }
+  return undefined
+}
+
+const toNodeIds = (node: DeviceTreeNode): { deviceId?: number; modelId?: number } => {
+  const modelId = typeof node.modelId === 'number' && Number.isFinite(node.modelId) ? node.modelId : undefined
+  const deviceId = typeof node.deviceId === 'number' && Number.isFinite(node.deviceId) ? node.deviceId : undefined
+  if (typeof deviceId === 'number') return { deviceId, modelId }
+
+  const parts = String(node.id ?? '').split('-').filter(Boolean)
+  const last = parts.length ? parts[parts.length - 1] : undefined
+  const parsed = toFiniteId(last)
+  if (typeof parsed !== 'number' || !Number.isFinite(parsed) || parsed <= 0) {
+    return { modelId }
+  }
+  return { deviceId: parsed, modelId }
+}
+
+const buildParamTitle = (param: DeviceTreeNode) => {
   const unitText = param.unit ? ` (${param.unit})` : ''
   return t('DataCollection.DeviceParamAnalysis.selectedParamTitle', {
     label: param.label,
     unit: unitText
   })
-})
+}
 
-const chartOption = computed<EChartsOption>(() => {
-  const unit = selectedParam.value?.unit
+const buildChartOption = (group: SelectedGroup): EChartsOption => {
+  const unit = group.param?.unit
   return {
     tooltip: { trigger: 'axis' },
     legend: { top: 10, left: 'center', type: 'scroll' },
@@ -191,13 +241,13 @@ const chartOption = computed<EChartsOption>(() => {
     xAxis: {
       type: 'category',
       boundaryGap: false,
-      data: chartXAxis.value
+      data: group.chartXAxis
     },
     yAxis: {
       type: 'value',
       name: unit || ''
     },
-    series: chartSeries.value.map((s) => ({
+    series: group.chartSeries.map((s) => ({
       type: 'line',
       name: s.name,
       smooth: false,
@@ -205,25 +255,6 @@ const chartOption = computed<EChartsOption>(() => {
       data: s.data
     }))
   }
-})
-
-let keywordTimer: number | undefined
-const handleKeywordChange = () => {
-  if (keywordTimer) window.clearTimeout(keywordTimer)
-  keywordTimer = window.setTimeout(() => {
-    keywordTimer = undefined
-    loadTree()
-  }, 300)
-}
-
-const toFiniteId = (value: any): number | undefined => {
-  if (typeof value === 'number') return Number.isFinite(value) ? value : undefined
-  if (typeof value === 'string') {
-    if (/^\d+$/.test(value.trim())) return Number(value)
-    const n = Number(value)
-    return Number.isFinite(n) ? n : undefined
-  }
-  return undefined
 }
 
 const buildTreeFromApi = (orgs: ApiTreeOrg[]): DeviceTreeNode[] => {
@@ -258,7 +289,8 @@ const buildTreeFromApi = (orgs: ApiTreeOrg[]): DeviceTreeNode[] => {
         deviceId: toFiniteId(eq.id),
         modelId: toFiniteId(p.id),
         paramKey: p?.code ? String(p.code) : undefined,
-        unit: p?.unit ? String(p.unit) : undefined
+        unit: p?.unit ? String(p.unit) : undefined,
+        disabled: false
       }))
 
       return {
@@ -267,7 +299,8 @@ const buildTreeFromApi = (orgs: ApiTreeOrg[]): DeviceTreeNode[] => {
         type: 'device',
         deviceId: toFiniteId(eq.id),
         paramCount: params.length,
-        children: paramNodes.length ? paramNodes : undefined
+        children: paramNodes.length ? paramNodes : undefined,
+        disabled: true
       }
     })
 
@@ -276,7 +309,8 @@ const buildTreeFromApi = (orgs: ApiTreeOrg[]): DeviceTreeNode[] => {
       id: `org-${org.id}`,
       label: org?.name ?? String(org?.id ?? ''),
       type: 'device',
-      children: children.length ? children : undefined
+      children: children.length ? children : undefined,
+      disabled: true
     }
   }
 
@@ -298,12 +332,8 @@ const loadTree = async () => {
     treeData.value = buildTreeFromApi(extractApiOrgs(res))
     if (keyword.value) {
       treeRef.value?.setCurrentKey?.(undefined)
-      selectedParam.value = null
-      selectedDeviceId.value = undefined
-      selectedModelId.value = undefined
-      chartState.value = 'idle'
-      chartXAxis.value = []
-      chartSeries.value = []
+      treeRef.value?.setCheckedKeys?.([])
+      selectedGroups.value = []
     }
   } catch {
     message.error(t('DataCollection.DeviceParamAnalysis.messageLoadTreeFailed'))
@@ -312,16 +342,16 @@ const loadTree = async () => {
   }
 }
 
-const ensureDateRange = () => {
-  if (!dateRange.value || dateRange.value.length !== 2) {
-    dateRange.value = buildDefaultDateRange()
+const ensureDateRange = (group: SelectedGroup) => {
+  if (!group.dateRange || group.dateRange.length !== 2) {
+    group.dateRange = buildDefaultDateRange()
   }
 }
 
-const resetChartData = () => {
-  chartXAxis.value = []
-  chartSeries.value = []
-  chartRenderKey.value++
+const resetChartData = (group: SelectedGroup) => {
+  group.chartXAxis = []
+  group.chartSeries = []
+  group.chartRenderKey++
 }
 
 const toNumber = (value: any) => {
@@ -339,37 +369,48 @@ const toNumber = (value: any) => {
   return 0
 }
 
-const fetchChart = async () => {
-  const param = selectedParam.value
-  if (typeof selectedDeviceId.value !== 'number' || !Number.isFinite(selectedDeviceId.value)) return
+const extractChartRows = (res: any): Record<string, any>[] => {
+  if (Array.isArray(res)) return res as Record<string, any>[]
+  if (Array.isArray(res?.data)) return res.data as Record<string, any>[]
+  if (Array.isArray(res?.result)) return res.result as Record<string, any>[]
+  if (Array.isArray(res?.list)) return res.list as Record<string, any>[]
+  return []
+}
+
+const fetchGroupChart = async (group: SelectedGroup, notify: boolean) => {
+  if (typeof group.deviceId !== 'number' || !Number.isFinite(group.deviceId)) return
 
-  ensureDateRange()
-  const [start, end] = dateRange.value
+  ensureDateRange(group)
+  const [start, end] = group.dateRange
   if (!start || !end) return
 
   const buildDateTime = (date: string, suffix: string) => {
     return date.includes(':') ? date : `${date} ${suffix}`
   }
 
-  chartState.value = 'loading'
-  chartLoading.value = true
-  resetChartData()
+  const requestSeq = ++group.requestSeq
+  group.chartState = 'loading'
+  group.chartLoading = true
+  resetChartData(group)
   try {
     const req: Record<string, any> = {
-      deviceId: selectedDeviceId.value,
+      deviceId: group.deviceId,
       collectionStartTime: buildDateTime(start, '00:00:00'),
       collectionEndTime: buildDateTime(end, '23:59:59')
     }
-    if (typeof selectedModelId.value === 'number' && Number.isFinite(selectedModelId.value)) {
-      req.modelId = selectedModelId.value
+    if (typeof group.modelId === 'number' && Number.isFinite(group.modelId)) {
+      req.modelId = group.modelId
     }
     const data = await DeviceModelAttributeApi.operationAnalysisDetails(req as any)
-    const rows: Record<string, any>[] = Array.isArray(data) ? data : []
+    if (requestSeq !== group.requestSeq) return
+    const rows: Record<string, any>[] = extractChartRows(data)
     if (!rows.length) {
-      chartXAxis.value = []
-      chartSeries.value = []
-      chartState.value = 'empty'
-      message.warning(t('DataCollection.DeviceParamAnalysis.messageNodeNoParams'))
+      group.chartXAxis = []
+      group.chartSeries = []
+      group.chartState = 'empty'
+      if (notify) {
+        message.warning(t('DataCollection.DeviceParamAnalysis.messageNodeNoParams'))
+      }
       return
     }
 
@@ -380,7 +421,8 @@ const fetchChart = async () => {
       const sortedRows = [...rows].sort((a, b) =>
         String(a?.[xKey] ?? '').localeCompare(String(b?.[xKey] ?? ''))
       )
-      chartXAxis.value = sortedRows.map((r) => String(r?.[xKey] ?? ''))
+      if (requestSeq !== group.requestSeq) return
+      group.chartXAxis = sortedRows.map((r) => String(r?.[xKey] ?? ''))
 
       const seriesKeys = keys.filter((k) => k !== xKey)
       const seriesMap = new Map<string, Array<number | null>>()
@@ -407,77 +449,76 @@ const fetchChart = async () => {
         })
       })
 
-      chartSeries.value = Array.from(seriesMap.entries()).map(([name, data]) => ({ name, data }))
+      group.chartSeries = Array.from(seriesMap.entries()).map(([name, data]) => ({ name, data }))
     } else {
-      chartXAxis.value = keys
+      group.chartXAxis = keys
       const values = keys.map((k) => toNumber(firstRow[k]))
-      chartSeries.value = [
-        { name: param?.label || t('DataCollection.DeviceParamAnalysis.defaultSeriesName'), data: values }
+      group.chartSeries = [
+        { name: group.param?.label || t('DataCollection.DeviceParamAnalysis.defaultSeriesName'), data: values }
       ]
     }
 
-    chartState.value = chartXAxis.value.length && chartSeries.value.length ? 'ready' : 'empty'
+    group.chartState = group.chartXAxis.length && group.chartSeries.length ? 'ready' : 'empty'
   } catch {
-    message.error(t('DataCollection.DeviceParamAnalysis.messageFetchChartFailed'))
-    chartState.value = 'idle'
+    if (notify) {
+      message.error(t('DataCollection.DeviceParamAnalysis.messageFetchChartFailed'))
+    }
+    group.chartState = 'idle'
   } finally {
-    chartLoading.value = false
+    if (requestSeq === group.requestSeq) {
+      group.chartLoading = false
+    }
   }
 }
 
-const handleTreeNodeClick = async (data: DeviceTreeNode) => {
-  if (keywordTimer) {
-    window.clearTimeout(keywordTimer)
-    keywordTimer = undefined
-  }
-
-  const hasChildren = Array.isArray(data?.children) && data.children.length > 0
-  if (hasChildren) {
-    return
-  }
-
-
-  const isEmptyOrgNode = typeof data?.id === 'string' && data.id.startsWith('org-')
-  const isEquipmentNode = typeof data?.id === 'string' && data.id.startsWith('equipment-')
-  if (isEquipmentNode && (data.paramCount ?? 0) <= 0 || isEmptyOrgNode) {
-    selectedParam.value = data
-    selectedDeviceId.value = undefined
-    selectedModelId.value = undefined
-    chartState.value = 'empty'
-    resetChartData()
-    message.warning(t('DataCollection.DeviceParamAnalysis.messageDeviceNoParams'))
-    return
-  }
+const syncGroupsByCheckedNodes = (checkedNodes: DeviceTreeNode[]) => {
+  const ids = checkedNodes.map((n) => String(n.id))
+  const existingIds = new Set(selectedGroups.value.map((g) => g.id))
+  const nextIds = new Set(ids)
 
-  const toNodeIds = (node: DeviceTreeNode): { deviceId?: number; modelId?: number } => {
-    const modelId = typeof node.modelId === 'number' && Number.isFinite(node.modelId) ? node.modelId : undefined
-    const deviceId = typeof node.deviceId === 'number' && Number.isFinite(node.deviceId) ? node.deviceId : undefined
-    if (typeof deviceId === 'number') return { deviceId, modelId }
+  selectedGroups.value = selectedGroups.value.filter((g) => nextIds.has(g.id))
 
-    const parts = String(node.id ?? '').split('-').filter(Boolean)
-    const last = parts.length ? parts[parts.length - 1] : undefined
-    const parsed = toFiniteId(last)
-    if (typeof parsed !== 'number' || !Number.isFinite(parsed) || parsed <= 0) {
-      return { modelId }
+  const toAdd = checkedNodes.filter((n) => !existingIds.has(String(n.id)))
+  const addedGroups: SelectedGroup[] = []
+  for (const node of toAdd) {
+    const { deviceId, modelId } = toNodeIds(node)
+    if (typeof deviceId !== 'number') {
+      continue
     }
-    return { deviceId: parsed, modelId }
+    const group: SelectedGroup = {
+      id: String(node.id),
+      param: node,
+      deviceId,
+      modelId,
+      dateRange: buildDefaultDateRange(),
+      requestSeq: 0,
+      chartLoading: false,
+      chartState: 'idle',
+      chartXAxis: [],
+      chartSeries: [],
+      chartRenderKey: 0
+    }
+    selectedGroups.value.push(group)
+    addedGroups.push(group)
   }
+  return addedGroups
+}
 
-  const { deviceId, modelId } = toNodeIds(data)
-  selectedParam.value = data
-  selectedDeviceId.value = deviceId
-  selectedModelId.value = modelId
-  dateRange.value = buildDefaultDateRange()
-  await fetchChart()
+const handleTreeCheck = async () => {
+  const checkedNodes = (treeRef.value?.getCheckedNodes?.(true) ?? []) as DeviceTreeNode[]
+  const addedGroups = syncGroupsByCheckedNodes(checkedNodes)
+  const needFetchGroups = selectedGroups.value.filter((g) => g.chartState === 'idle' && !g.chartLoading)
+  const groups = [...new Set([...addedGroups, ...needFetchGroups])]
+  await Promise.allSettled(groups.map((g) => fetchGroupChart(g, false)))
 }
 
-const handleQuery = async () => {
-  await fetchChart()
+const handleQuery = async (group: SelectedGroup) => {
+  await fetchGroupChart(group, true)
 }
 
-const resetQuery = async () => {
-  dateRange.value = buildDefaultDateRange()
-  await fetchChart()
+const resetQuery = async (group: SelectedGroup) => {
+  group.dateRange = buildDefaultDateRange()
+  await fetchGroupChart(group, true)
 }
 
 onMounted(async () => {
@@ -486,10 +527,19 @@ onMounted(async () => {
 </script>
 
 <style scoped lang="scss">
+.device-param-analysis-form{
+    margin-bottom: 0px
+}
 .device-param-analysis-form :deep(.el-form-item__label) {
   min-width: 100px;
 }
 
+.analysis-groups {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
 :deep(.el-tree) {
   max-height: calc(100vh - 280px);
   overflow: auto;