diff --git a/backend/my_work/routers/apiPurchase.go b/backend/my_work/routers/apiPurchase.go
index 1671d09..db22c07 100644
--- a/backend/my_work/routers/apiPurchase.go
+++ b/backend/my_work/routers/apiPurchase.go
@@ -812,6 +812,39 @@ func ApiPurchase(r *gin.RouterGroup) {
 		ReturnJson(ctx, "apiOK", nil)
 	})
 
+	// 一键锁定所有已完成订单（已收件/丢件/退件）
+	r.POST("/lock_all_completed", func(ctx *gin.Context) {
+		isAuth, user, _ := AuthenticationAuthority(ctx)
+		if !isAuth {
+			ReturnJson(ctx, "userCookieError", nil)
+			return
+		}
+
+		if !canUnlockPurchase(user.ID) {
+			ReturnJson(ctx, "no_permission", nil)
+			return
+		}
+
+		result := models.DB.Model(&TabPurchaseOrder{}).
+			Where("order_status IN ? AND locked = ? AND deleted_at IS NULL",
+				[]string{"received", "lost", "returned"}, false).
+			Update("locked", true)
+
+		lockedCount := result.RowsAffected
+
+		tosqllog := TabPurchaseLog{
+			UserID:     user.ID,
+			ActionType: "lock_all",
+			IP:         ctx.ClientIP(),
+			Remark:     parsefmt.Sprintf("一键锁定所有已完成订单，共 %d 个", lockedCount),
+		}
+		models.DB.Create(&tosqllog)
+
+		ReturnJson(ctx, "apiOK", gin.H{
+			"locked_count": lockedCount,
+		})
+	})
+
 	r.POST("/getorders", func(ctx *gin.Context) {
 		isAuth, _, data := AuthenticationAuthority(ctx)
 		if isAuth {
diff --git a/frontend/ops_vue_js/src/api/purchase.js b/frontend/ops_vue_js/src/api/purchase.js
index f4462a0..89d36d1 100644
--- a/frontend/ops_vue_js/src/api/purchase.js
+++ b/frontend/ops_vue_js/src/api/purchase.js
@@ -51,6 +51,11 @@ export const purchaseApi = {
     return api.post('/purchase/unlock', { id })
   },
 
+  /** 一键锁定所有已完成订单（管理员） */
+  lockAllCompleted() {
+    return api.post('/purchase/lock_all_completed', {})
+  },
+
   /** 搜索工单（用于采购订单关联） */
   searchWorkOrders(search = '', limit = 5) {
     return api.post('/purchase/search_work_orders', { search, limit })
diff --git a/frontend/ops_vue_js/src/i18n/en.json b/frontend/ops_vue_js/src/i18n/en.json
index 9025202..12bc63f 100644
--- a/frontend/ops_vue_js/src/i18n/en.json
+++ b/frontend/ops_vue_js/src/i18n/en.json
@@ -607,6 +607,11 @@
     "tab_users": "User Management",
     "tab_groups": "User Groups",
     "tab_logs": "Login Logs",
+    "tab_purchase_orders": "Purchase Orders",
+    "lock_all_completed": "Lock All Completed Orders",
+    "lock_all_confirm": "Lock all unlocked orders with received/lost/returned status?",
+    "lock_all_success": "Locked {count} orders",
+    "lock_all_none": "No completed orders to lock",
     "total_users": "Total {count} users",
     "search_placeholder": "Search username or email...",
     "search": "Search",
diff --git a/frontend/ops_vue_js/src/i18n/zh-CN.json b/frontend/ops_vue_js/src/i18n/zh-CN.json
index 3713e57..b740b5e 100644
--- a/frontend/ops_vue_js/src/i18n/zh-CN.json
+++ b/frontend/ops_vue_js/src/i18n/zh-CN.json
@@ -607,6 +607,11 @@
     "tab_users": "用户管理",
     "tab_groups": "用户组",
     "tab_logs": "登录日志",
+    "tab_purchase_orders": "订单管理",
+    "lock_all_completed": "一键锁定已完成订单",
+    "lock_all_confirm": "确定要锁定所有已收件/丢件/退件状态的未锁定订单吗？",
+    "lock_all_success": "已锁定 {count} 个订单",
+    "lock_all_none": "没有需要锁定的已完成订单",
     "total_users": "共 {count} 位用户",
     "search_placeholder": "搜索用户名或邮箱...",
     "search": "搜索",
diff --git a/frontend/ops_vue_js/src/views/sysadmin/PurchaseOrdersTab.vue b/frontend/ops_vue_js/src/views/sysadmin/PurchaseOrdersTab.vue
new file mode 100644
index 0000000..b913d8a
--- /dev/null
+++ b/frontend/ops_vue_js/src/views/sysadmin/PurchaseOrdersTab.vue
@@ -0,0 +1,313 @@
+<script setup>
+import { ref, computed, onActivated } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useRouter } from 'vue-router'
+import { useToastStore } from '@/stores/toast'
+import { purchaseApi } from '@/api/purchase'
+import ConfirmDialog from '@/components/ConfirmDialog.vue'
+import {
+  IconLock,
+  IconLockOpen,
+  IconRefresh,
+  IconChevronLeftPipe,
+  IconChevronRightPipe,
+  IconChevronsLeft,
+  IconChevronsRight,
+} from '@tabler/icons-vue'
+
+const { t, locale } = useI18n()
+const router = useRouter()
+const toast = useToastStore()
+
+const orders = ref([])
+const totalCount = ref(0)
+const pageSize = ref(20)
+const currentPage = ref(1)
+const statusFilter = ref('')
+const loading = ref(false)
+
+const showLockAllConfirm = ref(false)
+const lockAllLoading = ref(false)
+
+const totalPages = computed(() => Math.ceil(totalCount.value / pageSize.value) || 1)
+
+const pageRange = computed(() => {
+  const total = totalPages.value
+  const cur = currentPage.value
+  let start = Math.max(1, cur - 2)
+  let end = Math.min(cur + 4, total)
+  if (end - start < 4) start = Math.max(1, end - 4)
+  return Array.from({ length: end - start + 1 }, (_, i) => start + i)
+})
+
+const statusOptions = [
+  { value: '', labelKey: 'purchase.filter_all' },
+  { value: 'pending', labelKey: 'purchase.status_pending' },
+  { value: 'ordered', labelKey: 'purchase.status_ordered' },
+  { value: 'arrived', labelKey: 'purchase.status_arrived' },
+  { value: 'received', labelKey: 'purchase.status_received' },
+  { value: 'lost', labelKey: 'purchase.status_lost' },
+  { value: 'returned', labelKey: 'purchase.status_returned' },
+]
+
+async function fetchOrders() {
+  loading.value = true
+  try {
+    const { errCode, data } = await purchaseApi.getOrders({
+      status: statusFilter.value,
+      entries: pageSize.value,
+      page: currentPage.value,
+    })
+    if (errCode === 0) {
+      orders.value = data.all_orders ?? []
+      totalCount.value = data.all_count ?? 0
+    }
+  } catch {
+    // handled by interceptor
+  } finally {
+    loading.value = false
+  }
+}
+
+function onStatusChange() {
+  currentPage.value = 1
+  fetchOrders()
+}
+
+function goToPage(p) {
+  if (p < 1 || p > totalPages.value) return
+  currentPage.value = p
+  fetchOrders()
+}
+
+function handlePageSizeInput(e) {
+  const val = parseInt(e.target.value)
+  if (val > 0 && val <= 300) {
+    pageSize.value = val
+    currentPage.value = 1
+    fetchOrders()
+  }
+}
+
+function handleJumpPageInput(e) {
+  const val = parseInt(e.target.value)
+  if (val >= 1 && val <= totalPages.value) {
+    goToPage(val)
+  }
+}
+
+function jumpToOrder(id) {
+  router.push(`/purchase/showorder/${id}`)
+}
+
+function formatDate(dateStr) {
+  if (!dateStr) return '-'
+  const d = new Date(dateStr)
+  if (isNaN(d.getTime())) return '-'
+  return new Intl.DateTimeFormat(locale.value, {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit',
+    hour12: false,
+  }).format(d)
+}
+
+async function confirmLockAll() {
+  lockAllLoading.value = true
+  try {
+    const { errCode, data } = await purchaseApi.lockAllCompleted()
+    if (errCode === 0) {
+      const count = data?.locked_count ?? 0
+      if (count > 0) {
+        toast.success(t('sysadmin.lock_all_success', { count }))
+      } else {
+        toast.info(t('sysadmin.lock_all_none'))
+      }
+      await fetchOrders()
+    } else {
+      toast.error(t('message.server_error'))
+    }
+  } catch {
+    toast.error(t('message.server_error'))
+  } finally {
+    lockAllLoading.value = false
+    showLockAllConfirm.value = false
+  }
+}
+
+defineExpose({ fetchOrders })
+
+onActivated(() => fetchOrders())
+</script>
+
+<template>
+  <div class="space-y-4">
+    <!-- 顶部操作栏 -->
+    <div class="flex items-center justify-between">
+      <h2 class="text-lg font-semibold text-gray-900 dark:text-dk-text">
+        {{ t('sysadmin.tab_purchase_orders') }}
+      </h2>
+      <div class="flex items-center gap-2">
+        <span class="text-sm text-gray-500 dark:text-dk-subtle">
+          {{ t('purchase.There_are_a_total_of') }} {{ totalCount }} {{ t('purchase.items') }}
+        </span>
+        <button
+          class="flex items-center gap-1.5 rounded-md border border-gray-300 px-3 py-1.5 text-sm text-gray-600 transition-colors hover:bg-gray-50 dark:border-dk-muted dark:text-dk-subtle dark:hover:bg-dk-card"
+          :disabled="loading"
+          @click="fetchOrders"
+        >
+          <IconRefresh :size="16" :class="{ 'animate-spin': loading }" />
+        </button>
+        <button
+          class="flex items-center gap-1.5 rounded-md bg-orange-500 px-4 py-1.5 text-sm font-medium text-white transition-colors hover:bg-orange-600 disabled:opacity-50"
+          :disabled="lockAllLoading"
+          @click="showLockAllConfirm = true"
+        >
+          <IconLock :size="16" />
+          {{ t('sysadmin.lock_all_completed') }}
+        </button>
+      </div>
+    </div>
+
+    <!-- 状态筛选 -->
+    <div class="flex flex-wrap gap-2">
+      <button
+        v-for="opt in statusOptions"
+        :key="opt.value"
+        class="rounded-full border px-3 py-1 text-xs font-medium transition-all"
+        :class="
+          statusFilter === opt.value
+            ? 'border-blue-500 bg-blue-500 text-white'
+            : 'border-gray-200 text-gray-500 hover:border-gray-300 hover:bg-gray-50 dark:border-dk-muted dark:text-dk-subtle dark:hover:bg-dk-card'
+        "
+        @click="statusFilter = opt.value; onStatusChange()"
+      >
+        {{ t('purchase.' + opt.labelKey) }}
+      </button>
+    </div>
+
+    <!-- 订单表格 -->
+    <div class="overflow-hidden rounded-md border border-gray-200 dark:border-dk-muted">
+      <table class="min-w-full divide-y divide-gray-200 dark:divide-dk-muted">
+        <thead class="bg-gray-50 dark:bg-dk-base">
+          <tr>
+            <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">ID</th>
+            <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">{{ t('purchase_addorder.part_name') }}</th>
+            <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">{{ t('purchase.status') }}</th>
+            <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">{{ t('purchase.created_at') }}</th>
+            <th class="px-4 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500 dark:text-dk-subtle">{{ t('purchase.updated_at') }}</th>
+          </tr>
+        </thead>
+        <tbody class="divide-y divide-gray-200 bg-white dark:divide-dk-muted dark:bg-dk-card">
+          <tr v-if="loading" class="text-center">
+            <td colspan="5" class="py-8 text-gray-500 dark:text-dk-subtle">{{ t('sysadmin.loading') }}</td>
+          </tr>
+          <tr v-else-if="orders.length === 0" class="text-center">
+            <td colspan="5" class="py-8 text-gray-500 dark:text-dk-subtle">{{ t('sysadmin.no_data') }}</td>
+          </tr>
+          <tr
+            v-for="order in orders"
+            :key="order.ID"
+            class="cursor-pointer transition-colors hover:bg-blue-50/50 dark:hover:bg-dk-base/50"
+            @click="jumpToOrder(order.ID)"
+          >
+            <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-400">{{ order.ID }}</td>
+            <td class="px-4 py-3 text-sm font-medium text-gray-900 dark:text-dk-text max-w-[200px] truncate">{{ order.Title || '-' }}</td>
+            <td class="whitespace-nowrap px-4 py-3">
+              <span
+                class="inline-flex items-center gap-1 rounded-full px-2.5 py-0.5 text-xs font-semibold"
+                :class="{
+                  'bg-yellow-100 text-yellow-700 dark:bg-yellow-900/40 dark:text-yellow-400': order.OrderStatus === 'pending',
+                  'bg-blue-100 text-blue-700 dark:bg-blue-900/40 dark:text-blue-400': order.OrderStatus === 'ordered',
+                  'bg-purple-100 text-purple-700 dark:bg-purple-900/40 dark:text-purple-400': order.OrderStatus === 'arrived',
+                  'bg-green-100 text-green-700 dark:bg-green-900/40 dark:text-green-400': order.OrderStatus === 'received',
+                  'bg-red-100 text-red-700 dark:bg-red-900/40 dark:text-red-400': order.OrderStatus === 'lost',
+                  'bg-gray-200 text-gray-600 dark:bg-gray-700 dark:text-gray-300': order.OrderStatus === 'returned',
+                }"
+              >
+                {{ t('purchase.status_' + order.OrderStatus) }}
+              </span>
+              <span
+                v-if="order.Locked"
+                class="ml-1 inline-flex items-center text-red-500 dark:text-red-400"
+                :title="t('purchase.locked')"
+              >
+                <IconLock :size="14" />
+              </span>
+            </td>
+            <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-500 dark:text-dk-subtle">{{ formatDate(order.CreatedAt) }}</td>
+            <td class="whitespace-nowrap px-4 py-3 text-sm text-gray-500 dark:text-dk-subtle">{{ formatDate(order.UpdatedAt) }}</td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+
+    <!-- 分页 -->
+    <div class="flex flex-col items-center justify-between gap-3 sm:flex-row">
+      <div class="flex items-center gap-1.5 text-sm text-gray-500 dark:text-dk-subtle">
+        <label>{{ t('purchase.show') }}</label>
+        <input
+          type="text"
+          class="w-14 rounded border border-gray-300 px-2 py-1 text-center text-sm text-gray-900 dark:border-dk-muted dark:bg-dk-base dark:text-white"
+          :value="pageSize"
+          @change="handlePageSizeInput"
+        />
+        <label>{{ t('purchase.entries') }}</label>
+      </div>
+      <div class="flex items-center gap-1">
+        <button
+          class="rounded p-1.5 text-gray-500 transition-colors hover:bg-gray-100 hover:text-gray-700 disabled:opacity-40 dark:hover:bg-dk-card"
+          :disabled="currentPage <= 1"
+          @click="goToPage(1)"
+        >
+          <IconChevronsLeft :size="16" />
+        </button>
+        <button
+          class="rounded p-1.5 text-gray-500 transition-colors hover:bg-gray-100 hover:text-gray-700 disabled:opacity-40 dark:hover:bg-dk-card"
+          :disabled="currentPage <= 1"
+          @click="goToPage(currentPage - 1)"
+        >
+          <IconChevronLeftPipe :size="16" />
+        </button>
+        <template v-for="a in pageRange" :key="a">
+          <button
+            class="min-w-[32px] rounded px-2 py-1 text-sm font-medium transition-colors"
+            :class="a === currentPage ? 'bg-blue-600 text-white' : 'text-gray-600 hover:bg-gray-100 dark:text-dk-subtle dark:hover:bg-dk-card'"
+            @click="goToPage(a)"
+          >
+            {{ a }}
+          </button>
+        </template>
+        <button
+          class="rounded p-1.5 text-gray-500 transition-colors hover:bg-gray-100 hover:text-gray-700 disabled:opacity-40 dark:hover:bg-dk-card"
+          :disabled="currentPage >= totalPages"
+          @click="goToPage(currentPage + 1)"
+        >
+          <IconChevronRightPipe :size="16" />
+        </button>
+        <button
+          class="rounded p-1.5 text-gray-500 transition-colors hover:bg-gray-100 hover:text-gray-700 disabled:opacity-40 dark:hover:bg-dk-card"
+          :disabled="currentPage >= totalPages"
+          @click="goToPage(totalPages)"
+        >
+          <IconChevronsRight :size="16" />
+        </button>
+        <input
+          type="text"
+          class="ml-2 w-14 rounded border border-gray-300 px-2 py-1 text-center text-sm text-gray-900 dark:border-dk-muted dark:bg-dk-base dark:text-white"
+          @change="handleJumpPageInput"
+        />
+      </div>
+    </div>
+
+    <!-- 一键锁定确认弹窗 -->
+    <ConfirmDialog
+      v-model="showLockAllConfirm"
+      :message="t('sysadmin.lock_all_confirm')"
+      danger
+      @confirm="confirmLockAll"
+    />
+  </div>
+</template>
diff --git a/frontend/ops_vue_js/src/views/sysadmin/SysAdminView.vue b/frontend/ops_vue_js/src/views/sysadmin/SysAdminView.vue
index 45beb11..42cc2c1 100644
--- a/frontend/ops_vue_js/src/views/sysadmin/SysAdminView.vue
+++ b/frontend/ops_vue_js/src/views/sysadmin/SysAdminView.vue
@@ -9,6 +9,7 @@ import UsersTab from '@/views/sysadmin/UsersTab.vue'
 import GroupsTab from '@/views/sysadmin/GroupsTab.vue'
 import LogsTab from '@/views/sysadmin/LogsTab.vue'
 import OperationLogsTab from '@/views/sysadmin/OperationLogsTab.vue'
+import PurchaseOrdersTab from '@/views/sysadmin/PurchaseOrdersTab.vue'
 
 const { t } = useI18n()
 const userStore = useUserStore()
@@ -24,12 +25,14 @@ const usersTabRef = ref(null)
 const groupsTabRef = ref(null)
 const logsTabRef = ref(null)
 const operationLogsTabRef = ref(null)
+const purchaseOrdersTabRef = ref(null)
 
 const tabs = [
   { id: 'users', label: t('sysadmin.tab_users') },
   { id: 'groups', label: t('sysadmin.tab_groups') },
   { id: 'logs', label: t('sysadmin.tab_logs') },
   { id: 'operation_logs', label: t('sysadmin.tab_operation_logs') },
+  { id: 'purchase_orders', label: t('sysadmin.tab_purchase_orders') },
   { id: 'customer', label: t('customer.title'), to: '/customer' },
   { id: 'calendar', label: t('calendar.admin_title'), to: '/calendars/admin' },
   { id: 'aiconfig', label: t('aiconfig.title'), to: '/admin/aiconfig' },
@@ -99,6 +102,7 @@ onMounted(() => {
           <GroupsTab v-else-if="activeTab === 'groups'" ref="groupsTabRef" />
           <LogsTab v-else-if="activeTab === 'logs'" ref="logsTabRef" />
           <OperationLogsTab v-else-if="activeTab === 'operation_logs'" ref="operationLogsTabRef" />
+          <PurchaseOrdersTab v-else-if="activeTab === 'purchase_orders'" ref="purchaseOrdersTabRef" />
         </KeepAlive>
       </div>