diff --git a/src/composables/useMonitorLive.js b/src/composables/useMonitorLive.js
new file mode 100644
index 0000000..108cb3a
--- /dev/null
+++ b/src/composables/useMonitorLive.js
@@ -0,0 +1,93 @@
+import { computed, reactive } from 'vue'
+import { getLivePlayURL, heartbeatLive, joinLive, leaveLive } from '@/api/live'
+
+export function useMonitorLive({ getDockId, ui, getLivePlayer }) {
+  const live = reactive({ session: null, dockId: '', playUrl: '', heartbeatTimer: null })
+
+  const livePhaseText = computed(() => {
+    if (!live.session) return '待机'
+    const phase = live.session.phase
+    if (phase === 'streaming') return live.playUrl.startsWith('fake://') ? '模拟直播' : '直播中'
+    if (phase === 'starting') return '启动中'
+    if (phase === 'reconnecting') return '重连中'
+    if (phase === 'stopping') return '停止中'
+    if (phase === 'failed') return '启动失败'
+    return '已停止'
+  })
+
+  const canFullscreenLive = computed(() => !!live.playUrl && !live.playUrl.startsWith('fake://'))
+
+  function toggleLive() {
+    if (live.session) closeLive()
+    else openLive()
+  }
+
+  function fullscreenLive() {
+    if (!canFullscreenLive.value) {
+      ui.toast('当前无可全屏播放的视频流')
+      return
+    }
+    const ok = getLivePlayer()?.requestFullscreen?.()
+    if (!ok) ui.toast('当前浏览器不支持全屏')
+  }
+
+  async function openLive() {
+    const dockId = getDockId?.()
+    if (!dockId) return
+    try {
+      const result = await joinLive(dockId)
+      live.session = result.session
+      live.dockId = dockId
+      scheduleLiveHeartbeat(result.leaseExpiresAt)
+      if (result.session.phase === 'streaming') await refreshPlayURL()
+    } catch (e) {
+      ui.toast(e.message || '打开直播失败')
+    }
+  }
+
+  async function refreshPlayURL() {
+    if (!live.dockId) return
+    const play = await getLivePlayURL(live.dockId)
+    live.playUrl = play.playUrl || ''
+  }
+
+  function scheduleLiveHeartbeat(expiresAt) {
+    window.clearTimeout(live.heartbeatTimer)
+    const delay = Math.max(5000, (Number(expiresAt) * 1000 - Date.now()) / 2)
+    live.heartbeatTimer = window.setTimeout(async () => {
+      try {
+        const result = await heartbeatLive(live.dockId, live.session.id)
+        live.session = result.session
+        scheduleLiveHeartbeat(result.leaseExpiresAt)
+        if (result.session.phase === 'streaming' && !live.playUrl) await refreshPlayURL()
+      } catch (e) {
+        ui.toast(e.message || '直播观看已结束')
+        await closeLive(false)
+      }
+    }, delay)
+  }
+
+  async function closeLive(sendRequest = true) {
+    window.clearTimeout(live.heartbeatTimer)
+    const session = live.session
+    const dockId = live.dockId
+    live.session = null
+    live.dockId = ''
+    live.playUrl = ''
+    if (sendRequest && session && dockId) {
+      try {
+        await leaveLive(dockId, session.id)
+      } catch (_) {}
+    }
+  }
+
+  return {
+    live,
+    livePhaseText,
+    canFullscreenLive,
+    toggleLive,
+    fullscreenLive,
+    openLive,
+    closeLive,
+  }
+}
diff --git a/src/views/MonitorView/MonitorView.vue b/src/views/MonitorView/MonitorView.vue
index 595e608..aee0e79 100644
--- a/src/views/MonitorView/MonitorView.vue
+++ b/src/views/MonitorView/MonitorView.vue
@@ -90,8 +90,8 @@ import MonitorDeviceList from '@/components/MonitorDeviceList.vue'
 import DockStatusDialog from '@/components/DockStatusDialog.vue'
 import CommandProgressFloat from '@/components/CommandProgressFloat.vue'
 import MonitorMapChrome from '@/components/MonitorMapChrome.vue'
-import { getLivePlayURL, heartbeatLive, joinLive, leaveLive } from '@/api/live'
 import { useCommandProgress } from '@/composables/useCommandProgress'
+import { useMonitorLive } from '@/composables/useMonitorLive'
 
 
 const DEVICE_SOURCE = 'monitor-devices'
@@ -118,8 +118,19 @@ const userStore = useUserStore()
 const isAdmin = computed(() => userStore.isAdmin())
 
 const selectedId = ref(null)
-const live = reactive({ session: null, dockId: '', playUrl: '', heartbeatTimer: null })
 const detailPanelRef = ref(null)
+const {
+  live,
+  livePhaseText,
+  canFullscreenLive,
+  toggleLive,
+  fullscreenLive,
+  closeLive,
+} = useMonitorLive({
+  getDockId: () => selectedDock.value?.dockId,
+  ui,
+  getLivePlayer: () => detailPanelRef.value?.livePlayerRef,
+})
 
 const filter = ref('all')
 const search = ref('')
@@ -689,18 +700,6 @@ const droneMissionState = computed(() => {
   return record.value.status || '停放待命'
 })
 
-const livePhaseText = computed(() => {
-  if (!live.session) return '待机'
-  const phase = live.session.phase
-  if (phase === 'streaming') return live.playUrl.startsWith('fake://') ? '模拟直播' : '直播中'
-  if (phase === 'starting') return '启动中'
-  if (phase === 'reconnecting') return '重连中'
-  if (phase === 'stopping') return '停止中'
-  if (phase === 'failed') return '启动失败'
-  return '已停止'
-})
-const canFullscreenLive = computed(() => !!live.playUrl && !live.playUrl.startsWith('fake://'))
-
 const detailHeader = computed(() => {
   const asset = selectedAsset.value
   if (!asset) return null
@@ -791,71 +790,6 @@ function onDetailCommand({ title, desc }) {
   runCommand(title, desc)
 }
 
-function toggleLive() {
-  if (live.session) closeLive()
-  else openLive()
-}
-
-function fullscreenLive() {
-  if (!canFullscreenLive.value) {
-    ui.toast('当前无可全屏播放的视频流')
-    return
-  }
-  const ok = detailPanelRef.value?.livePlayerRef?.requestFullscreen?.()
-  if (!ok) ui.toast('当前浏览器不支持全屏')
-}
-
-async function openLive() {
-  const dockId = selectedDock.value?.dockId
-  if (!dockId) return
-  try {
-    const result = await joinLive(dockId)
-    live.session = result.session
-    live.dockId = dockId
-    scheduleLiveHeartbeat(result.leaseExpiresAt)
-    if (result.session.phase === 'streaming') await refreshPlayURL()
-  } catch (e) {
-    ui.toast(e.message || '打开直播失败')
-  }
-}
-
-async function refreshPlayURL() {
-  if (!live.dockId) return
-  const play = await getLivePlayURL(live.dockId)
-  live.playUrl = play.playUrl || ''
-}
-
-function scheduleLiveHeartbeat(expiresAt) {
-  window.clearTimeout(live.heartbeatTimer)
-  const delay = Math.max(5000, (Number(expiresAt) * 1000 - Date.now()) / 2)
-  live.heartbeatTimer = window.setTimeout(async () => {
-    try {
-      const result = await heartbeatLive(live.dockId, live.session.id)
-      live.session = result.session
-      scheduleLiveHeartbeat(result.leaseExpiresAt)
-      if (result.session.phase === 'streaming' && !live.playUrl) await refreshPlayURL()
-    } catch (e) {
-      ui.toast(e.message || '直播观看已结束')
-      await closeLive(false)
-    }
-  }, delay)
-}
-
-async function closeLive(sendRequest = true) {
-  window.clearTimeout(live.heartbeatTimer)
-  const session = live.session
-  const dockId = live.dockId
-  live.session = null
-  live.dockId = ''
-  live.playUrl = ''
-  if (sendRequest && session && dockId) {
-    try {
-      await leaveLive(dockId, session.id)
-    } catch (_) {}
-  }
-}
-
-
 function displayWithUnit(value, unit, digits) {
   if (value == null || value === '') return '--'
   const num = Number(value)