diff --git a/frontend/src/stores/failed-message.ts b/frontend/src/stores/failed-message.ts
new file mode 100644
index 0000000..4ee31fc
--- /dev/null
+++ b/frontend/src/stores/failed-message.ts
@@ -0,0 +1,86 @@
+import { api } from '@/utils/request'
+import type {
+  PaginatedData,
+  FailedMessageRecord,
+  FailedMessageFilters,
+} from '@/types/api'
+
+export type { FailedMessageRecord }
+
+interface LookupItem {
+  id: number
+  name: string
+  label?: string
+}
+
+export const useFailedMessageStore = defineStore('failedMessage', () => {
+  const messages = ref<FailedMessageRecord[]>([])
+  const loading = ref(false)
+  const pagination = reactive({
+    page: 1,
+    per_page: 15,
+    total: 0,
+  })
+  const filters = reactive<FailedMessageFilters>({
+    data_type: undefined,
+    platform_id: undefined,
+    failed_at_range: null,
+  })
+
+  const platforms = ref<LookupItem[]>([])
+  const platformMap = computed(
+    () => new Map(platforms.value.map((p) => [p.id, p.label || p.name || `平台 #${p.id}`])),
+  )
+
+  async function loadLookups() {
+    try {
+      const p = await api.get<LookupItem[]>('/api/v1/platforms')
+      platforms.value = p
+    } catch (err: unknown) {
+      console.warn('加载平台列表失败', err)
+    }
+  }
+
+  async function fetchMessages() {
+    loading.value = true
+    try {
+      const data = await api.get<PaginatedData<FailedMessageRecord>>('/api/v1/failed-messages', {
+        page: pagination.page,
+        per_page: pagination.per_page,
+        data_type: filters.data_type || undefined,
+        platform_id: filters.platform_id || undefined,
+        failed_at_from: filters.failed_at_range?.[0] || undefined,
+        failed_at_to: filters.failed_at_range?.[1] || undefined,
+      })
+      messages.value = data.items
+      pagination.total = data.total
+      pagination.page = data.page
+    } catch (err: unknown) {
+      messages.value = []
+      pagination.total = 0
+      const msg = err instanceof Error ? err.message : '获取失败消息列表失败'
+      message.error(msg)
+    } finally {
+      loading.value = false
+    }
+  }
+
+  function resetFilters() {
+    filters.data_type = undefined
+    filters.platform_id = undefined
+    filters.failed_at_range = null
+    pagination.page = 1
+  }
+
+  return {
+    messages,
+    loading,
+    pagination,
+    filters,
+    platforms,
+    platformMap,
+    loadLookups,
+    fetchMessages,
+    resetFilters,
+  }
+})
diff --git a/frontend/src/stores/mq-status.ts b/frontend/src/stores/mq-status.ts
new file mode 100644
index 0000000..c9a38f6
--- /dev/null
+++ b/frontend/src/stores/mq-status.ts
@@ -0,0 +1,55 @@
+import { api } from '@/utils/request'
+import type { MqStatusData, MqQueueType, MqQueueInfo } from '@/types/api'
+
+export const useMqStatusStore = defineStore('mqStatus', () => {
+  const statusData = ref<MqStatusData | null>(null)
+  const loading = ref(false)
+  const errorMessage = ref('')
+  const queueType = ref<MqQueueType | undefined>(undefined)
+
+  const healthySummary = computed(() => {
+    if (!statusData.value) return { healthy: 0, total: 0 }
+    const allQueues: MqQueueInfo[] = [
+      ...statusData.value.business_queues,
+      ...statusData.value.retry_queues,
+      ...(!Array.isArray(statusData.value.error_queue) ? [statusData.value.error_queue] : []),
+    ]
+    const healthy = allQueues.filter(
+      (q) => q.status === 'active' || q.status === 'empty',
+    ).length
+    return { healthy, total: allQueues.length }
+  })
+
+  async function fetchStatus() {
+    loading.value = true
+    errorMessage.value = ''
+    try {
+      const params: Record<string, unknown> = {}
+      if (queueType.value) {
+        params.queue = queueType.value
+      }
+      const data = await api.get<MqStatusData>('/api/v1/mq/status', params)
+      statusData.value = data
+    } catch (err: unknown) {
+      const msg = err instanceof Error ? err.message : '获取 MQ 状态失败'
+      errorMessage.value = msg
+      message.error(msg)
+    } finally {
+      loading.value = false
+    }
+  }
+
+  function resetFilter() {
+    queueType.value = undefined
+  }
+
+  return {
+    statusData,
+    loading,
+    errorMessage,
+    queueType,
+    healthySummary,
+    fetchStatus,
+    resetFilter,
+  }
+})
diff --git a/frontend/src/types/api.ts b/frontend/src/types/api.ts
index 25e92fb..c781375 100644
--- a/frontend/src/types/api.ts
+++ b/frontend/src/types/api.ts
@@ -147,6 +147,67 @@ export interface RefundItemFilters {
   created_date_range: [string, string] | null
 }
 
+/** ─── MQ 状态监控 ─── */
+
+export type MqQueueStatusEnum = 'high_load' | 'processing' | 'active' | 'empty' | 'error'
+
+export interface MqQueueInfo {
+  queue: string
+  messages: number | string
+  consumers: number | string
+  status: MqQueueStatusEnum
+}
+
+export interface MqSummary {
+  total_messages: number
+  total_consumers: number
+}
+
+export interface MqStatusData {
+  business_queues: MqQueueInfo[]
+  retry_queues: MqQueueInfo[]
+  error_queue: MqQueueInfo | []
+  summary: MqSummary
+  fetched_at: string
+}
+
+export type MqQueueType = 'orders' | 'products' | 'refunds' | 'inventory'
+
+/** ─── 失败消息 ─── */
+
+export type FailedMessageDataType = 'order' | 'product' | 'refund' | 'inventory'
+
+/** 失败消息列表记录 */
+export interface FailedMessageRecord {
+  id: number
+  error_id: string
+  data_type: FailedMessageDataType
+  platform: string
+  platform_id: number
+  company_id: number
+  store_id: number
+  error_type: string
+  error_message: string
+  retry_count: number
+  message_id: string
+  failed_at: string
+  created_at: string
+}
+
+/** 失败消息详情（含错误堆栈和原始消息） */
+export interface FailedMessageDetail extends FailedMessageRecord {
+  error_code: string | null
+  error_trace: string | null
+  original_message: Record<string, unknown> | null
+}
+
+/** 失败消息筛选参数 */
+export interface FailedMessageFilters {
+  data_type: FailedMessageDataType | undefined
+  platform_id: number | undefined
+  failed_at_range: [string, string] | null
+}
+
 /** 业务异常 */
 export class ApiError extends Error {
   code: number