diff --git a/inventory-backend/app/api/v1/purchase.py b/inventory-backend/app/api/v1/purchase.py
index 7f2478e..e270639 100644
--- a/inventory-backend/app/api/v1/purchase.py
+++ b/inventory-backend/app/api/v1/purchase.py
@@ -206,7 +206,7 @@ def approve_purchase_request(purchase_id):
         action = data.get('action', 'approve')
         reject_reason = data.get('reject_reason')
 
-        if action not in ('approve', 'reject'):
+        if action not in ('approve', 'reject', 'close'):
             return jsonify({'code': 400, 'msg': '无效的审批操作'}), 400
 
         if action == 'reject' and not reject_reason:
@@ -219,7 +219,7 @@ def approve_purchase_request(purchase_id):
             reject_reason=reject_reason
         )
 
-        msg = '审批通过' if action == 'approve' else '已驳回'
+        msg = '审批通过' if action == 'approve' else ('已驳回' if action == 'reject' else '已完结')
         # ★ Fail-Closed: 审批响应剥离价格字段
         resp = purchase.to_dict()
         for k in ('unit_price', 'total_price', 'tax_rate'):
diff --git a/inventory-backend/app/models/purchase.py b/inventory-backend/app/models/purchase.py
index 2f43f0d..a1ff2b4 100644
--- a/inventory-backend/app/models/purchase.py
+++ b/inventory-backend/app/models/purchase.py
@@ -91,7 +91,7 @@ class PurchaseRequest(db.Model):
             'total_price': float(self.total_price) if self.total_price else 0,
             'tax_rate': float(self.tax_rate) if self.tax_rate else 0,
             'status': self.status,
-            'status_text': ['待审批', '已通过', '已驳回', '已完成'][self.status] if self.status in [0, 1, 2, 3] else '未知',
+            'status_text': ['待审批', '已通过', '已驳回', '已完成', '已完结'][self.status] if self.status in [0, 1, 2, 3, 4] else '未知',
             'requester_id': self.requester_id,
             'requester_name': self._get_user_name(self.requester_id),
             'requester_email': self._get_user_email(self.requester_id),
diff --git a/inventory-backend/app/services/purchase_service.py b/inventory-backend/app/services/purchase_service.py
index 46fe694..36dfa2e 100644
--- a/inventory-backend/app/services/purchase_service.py
+++ b/inventory-backend/app/services/purchase_service.py
@@ -145,12 +145,22 @@ class PurchaseService:
         if not purchase:
             raise ValueError("采购申请不存在")
 
-        if purchase.status != 0:
-            raise ValueError("当前状态不允许审批")
-
         beijing_tz = timezone(timedelta(hours=8))
         now = datetime.now(beijing_tz)
 
+        # ★ 完结：库管将「已通过(1)」的申请单置为「已完结(4)」（仿出库审批）
+        if action == 'close':
+            if purchase.status != 1:
+                raise ValueError("仅「已通过」的采购申请可完结")
+            purchase.status = 4
+            purchase.approver_id = user_id
+            purchase.approved_at = now
+            db.session.commit()
+            return purchase
+
+        if purchase.status != 0:
+            raise ValueError("当前状态不允许审批")
+
         if action == 'approve':
             purchase.status = 1
             purchase.approver_id = user_id
diff --git a/inventory-web/src/views/purchase/index.vue b/inventory-web/src/views/purchase/index.vue
index 3ece0d8..e836a83 100644
--- a/inventory-web/src/views/purchase/index.vue
+++ b/inventory-web/src/views/purchase/index.vue
@@ -10,6 +10,7 @@
         <el-radio-button :label="1">已通过</el-radio-button>
         <el-radio-button :label="2">已驳回</el-radio-button>
         <el-radio-button :label="3">已完成</el-radio-button>
+        <el-radio-button :label="4">已完结</el-radio-button>
       </el-radio-group>
       <el-button type="primary" :icon="Refresh" @click="fetchData">刷新</el-button>
       <el-button type="success" :icon="Plus" @click="openCreateDialog">
@@ -57,6 +58,10 @@
                     <el-button type="success" link size="small" @click="handleApprove(it)">通过</el-button>
                     <el-button type="danger" link size="small" @click="openRejectDialog(it)">驳回</el-button>
                   </template>
+                  <!-- ★ 已通过的采购申请：库管可手动完结 -->
+                  <template v-else-if="it.status === 1 && canClose">
+                    <el-button type="danger" plain link size="small" @click="handleCloseRequest(it)">完结</el-button>
+                  </template>
                 </template>
               </el-table-column>
             </el-table>
@@ -703,10 +708,16 @@ const canApprove = computed(() => {
     || userStore.hasPermission('inbound_purchase:operation')
 })
 
+// ★ 完结权限：超级管理员 / 库管（采购操作权限）
+const canClose = computed(() => {
+  return userStore.role === 'SUPER_ADMIN'
+    || userStore.hasPermission('inbound_purchase:operation')
+})
+
 // --- 工具函数 ---
 const statusTagType = (status: number) => {
   const map: Record<number, string> = {
-    0: 'warning', 1: 'success', 2: 'danger', 3: 'info'
+    0: 'warning', 1: 'success', 2: 'danger', 3: 'info', 4: 'info'
   }
   return map[status] ?? 'info'
 }
@@ -1170,6 +1181,26 @@ const handleApprove = async (row: any) => {
   }
 }
 
+// ★ 完结已通过的采购申请（库管）
+const handleCloseRequest = async (row: any) => {
+  try {
+    await ElMessageBox.confirm(
+      `确定强制完结采购申请【${row.request_no}】吗？\n\n` +
+      `此操作将使该单从「已通过」列表中移除，且不可恢复。`,
+      '⚠️ 强制完结确认',
+      { confirmButtonText: '确认完结', cancelButtonText: '取消', type: 'warning' }
+    )
+  } catch { return }
+
+  try {
+    await approvePurchase(row.id, { action: 'close' })
+    ElMessage.success(`采购申请 ${row.request_no} 已完结`)
+    await fetchData()
+  } catch (err: any) {
+    ElMessage.error(err?.msg || err?.message || '完结失败')
+  }
+}
+
 const openRejectDialog = (row: any) => {
   currentRejectRow.value = row
   rejectReason.value = ''