diff --git a/apps/jingrow/frontend/src/views/dev/AppDetail.vue b/apps/jingrow/frontend/src/views/dev/AppDetail.vue
index c75ce03..b1b1b4a 100644
--- a/apps/jingrow/frontend/src/views/dev/AppDetail.vue
+++ b/apps/jingrow/frontend/src/views/dev/AppDetail.vue
@@ -12,11 +12,17 @@
             </template>
             {{ t('Back') }}
           </n-button>
-          <n-button type="primary" @click="installApp" size="medium">
+          <n-button 
+            :type="isCurrentAppInstalled ? 'warning' : 'primary'" 
+            @click="installApp" 
+            size="medium"
+          >
             <template #icon>
-              <n-icon><Icon icon="tabler:download" /></n-icon>
+              <n-icon>
+                <Icon :icon="isCurrentAppInstalled ? 'tabler:refresh' : 'tabler:download'" />
+              </n-icon>
             </template>
-            {{ t('Install') }}
+            {{ isCurrentAppInstalled ? t('Update') : t('Install') }}
           </n-button>
         </div>
       </div>
@@ -151,8 +157,18 @@ const installMessage = ref('')
 const installStatus = ref<'success' | 'error' | 'info'>('info')
 const showProgressModal = ref(false)
 
+// 已安装应用集合
+const installedAppNames = ref<Set<string>>(new Set())
+
 const appName = computed(() => route.params.name as string)
 
+// 检查当前应用是否已安装
+const isCurrentAppInstalled = computed(() => {
+  if (!app.value) return false
+  const appName = app.value.app_name || app.value.name || ''
+  return installedAppNames.value.has(appName.toLowerCase())
+})
+
 async function loadAppDetail() {
   loading.value = true
   error.value = ''
@@ -261,6 +277,9 @@ async function performInstall() {
       installMessage.value = t('应用安装成功！')
       message.success(t('应用安装成功'))
       
+      // 刷新已安装应用列表
+      loadInstalledApps()
+      
       setTimeout(() => {
         showProgressModal.value = false
       }, 2000)
@@ -280,8 +299,27 @@ async function performInstall() {
   }
 }
 
+// 加载已安装应用列表
+async function loadInstalledApps() {
+  try {
+    const response = await axios.get('/jingrow/installed-app-names')
+    if (response.data.success) {
+      const apps = response.data.apps || []
+      installedAppNames.value = new Set(apps)
+    }
+  } catch (error) {
+    console.error('Load installed apps error:', error)
+  }
+}
+
 onMounted(() => {
   loadAppDetail()
+  loadInstalledApps()
+  
+  // 监听全局事件
+  window.addEventListener('installedAppsUpdated', () => {
+    loadInstalledApps()
+  })
 })
 </script>
 
diff --git a/apps/jingrow/frontend/src/views/dev/AppMarketplace.vue b/apps/jingrow/frontend/src/views/dev/AppMarketplace.vue
index 1710049..d532492 100644
--- a/apps/jingrow/frontend/src/views/dev/AppMarketplace.vue
+++ b/apps/jingrow/frontend/src/views/dev/AppMarketplace.vue
@@ -361,23 +361,10 @@ function truncateText(text: string, maxLength: number): string {
 // 加载已安装应用列表
 async function loadInstalledApps() {
   try {
-    const cached = sessionStorage.getItem('installed_apps_names')
-    if (cached) {
-      const data = JSON.parse(cached)
-      if (Date.now() - data.timestamp < 30 * 60 * 1000) {
-        installedAppNames.value = new Set(data.apps || [])
-        return
-      }
-    }
-    
     const response = await axios.get('/jingrow/installed-app-names')
     if (response.data.success) {
       const apps = response.data.apps || []
       installedAppNames.value = new Set(apps)
-      sessionStorage.setItem('installed_apps_names', JSON.stringify({
-        apps,
-        timestamp: Date.now()
-      }))
     }
   } catch (error) {
     console.error('Load installed apps error:', error)
@@ -393,6 +380,11 @@ function isAppInstalled(appName: string): boolean {
 onMounted(() => {
   loadApps()
   loadInstalledApps()
+  
+  // 监听全局事件
+  window.addEventListener('installedAppsUpdated', () => {
+    loadInstalledApps()
+  })
 })
 
 // 监听搜索和排序变化