diff --git a/inventory-web/src/views/borrow/apply/index.vue b/inventory-web/src/views/borrow/apply/index.vue
index fff50f7..12b63a1 100644
--- a/inventory-web/src/views/borrow/apply/index.vue
+++ b/inventory-web/src/views/borrow/apply/index.vue
@@ -247,6 +247,7 @@
       </div>
       <template #footer>
         <el-button @click="bomSelectVisible = false">取消</el-button>
+        <el-button :icon="Printer" :disabled="bomDetailList.length === 0" @click="printBomChecklist" title="先选择 BOM 配方后即可打印清单">打印 BOM 清单</el-button>
         <el-button
           v-if="userStore.hasPermission('op_borrow_apply:operation')"
           type="primary"
@@ -257,6 +258,62 @@
       </template>
     </el-dialog>
 
+    <!-- ★ BOM 打印区域（隐藏，打印时克隆到 iframe） -->
+    <div id="bom-print-area" class="print-bom-area" style="display:none;">
+      <h2 style="text-align:center; margin:0 0 8px;">BOM 借库清单</h2>
+      <p style="text-align:center; margin:0 0 16px; font-size:13px;">
+        BOM: <b>{{ selectedBomLabel }}</b> ｜ 套数: <b>{{ bomSets }}</b> 套 ｜ 生成时间: {{ bomPrintTime }}
+      </p>
+      <table class="print-table">
+        <thead>
+          <tr>
+            <th>序号</th><th>物料名称</th><th>规格型号</th><th>需求量</th><th>可用库存</th><th>缺料</th><th>结果</th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr v-for="(row, idx) in bomDetailList" :key="idx">
+            <td>{{ idx + 1 }}</td>
+            <td>{{ row.name }}</td>
+            <td>{{ row.sku }}</td>
+            <td>{{ row.need }}</td>
+            <td>{{ row.available }}</td>
+            <td>{{ row.shortage > 0 ? row.shortage : '-' }}</td>
+            <td>{{ row.shortage > 0 ? '缺货未加' : '可加' }}</td>
+          </tr>
+        </tbody>
+      </table>
+      <p style="margin-top:12px;">
+        可加 <b style="color:#67C23A;">{{ bomAvailableCount }}</b> 种 ｜
+        缺货 <b style="color:#F56C6C;">{{ bomShortageCount }}</b> 种
+      </p>
+      <p style="color:#909399; font-size:12px;">缺货物料不会加入本次借库申请单，请补货后重新按 BOM 添加。</p>
+
+      <!-- ★ 欠料待补签收区（仅当有缺货时打印此联，与出库选单一致） -->
+      <div v-if="bomShortageCount > 0" style="margin-top: 20px; border-top: 2px dashed #000; padding-top: 10px;">
+        <p style="text-align:center; margin:0 0 8px; font-size:13px;">
+          BOM: <b>{{ selectedBomLabel }}</b> ｜ 套数: <b>{{ bomSets }}</b> 套 ｜ 生成时间: {{ bomPrintTime }}
+        </p>
+        <p style="font-weight: bold; font-size: 14px;">⚠️ 欠料待补清单（请补料后在此签字）</p>
+        <table class="print-table" style="margin-top: 6px;">
+          <thead>
+            <tr>
+              <th>序号</th><th>物料名称</th><th>规格型号</th><th>需补数量</th><th>补领人签字</th><th>日期</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr v-for="(row, idx) in bomDetailList.filter(i => i.shortage > 0)" :key="idx">
+              <td>{{ idx + 1 }}</td>
+              <td>{{ row.name }}</td>
+              <td>{{ row.sku }}</td>
+              <td>{{ row.shortage }}</td>
+              <td></td>
+              <td></td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
+    </div>
+
     <el-dialog
         v-model="previewVisible"
         title="借库单核对与打印"
@@ -347,6 +404,19 @@
             />
           </el-select>
         </el-form-item>
+        <el-form-item label="预计归还日期">
+          <el-date-picker
+              v-model="requestExpectedReturn"
+              type="date"
+              placeholder="请选择日期"
+              style="width: 100%"
+              value-format="YYYY-MM-DD"
+              :disabled="requestIndefinite"
+          />
+          <el-checkbox v-model="requestIndefinite" @change="handleRequestIndefiniteChange" style="margin-left: 12px;">
+            长期借用
+          </el-checkbox>
+        </el-form-item>
         <el-form-item label="申请原因">
           <el-input
               v-model="requestRemark"
@@ -473,6 +543,8 @@ const printLoading = ref(false)
 const requestDialogVisible = ref(false)
 const borrowerName = ref('')
 const requestRemark = ref('')
+const requestExpectedReturn = ref('')
+const requestIndefinite = ref(false)
 const requestApproverId = ref<number | null>(null)
 const approvers = ref<any[]>([])
 const requestSubmitting = ref(false)
@@ -495,6 +567,7 @@ const bomOptions = ref<any[]>([])
 const selectedBomNo = ref('')
 const bomSets = ref(1)
 const currentBomDetail = ref<any[]>([])  // 当前选中的BOM明细
+const bomPrintTime = ref('')
 
 // BOM 树形数据（将分组数据映射为 el-tree-select 需要的结构）
 const treeData = computed(() => {
@@ -503,7 +576,8 @@ const treeData = computed(() => {
     label: `${group.category} (${group.count})`,
     disabled: true, // 禁止选中分类本身
     children: (group.items || []).map((b: any) => ({
-      value: b.bom_no,
+      // ★ 用 bom_no + version 组合作为唯一 value，避免同一产品多版本时回显错乱
+      value: `${b.bom_no}###${b.version}`,
       label: `${b.bom_no} - ${b.parent_name} - ${b.version}`
     }))
   }))
@@ -546,6 +620,14 @@ const bomDetailList = computed(() => {
 })
 
 const hasShortage = computed(() => bomDetailList.value.some((item: any) => item.shortage > 0) && bomSets.value > maxBuildableSets.value)
+const bomAvailableCount = computed(() => bomDetailList.value.filter(i => i.shortage === 0).length)
+const bomShortageCount = computed(() => bomDetailList.value.filter(i => i.shortage > 0).length)
+
+// BOM 选择显示标签（bom_no###version → "bom_no (version)"）
+const selectedBomLabel = computed(() => {
+  const [no, ver] = (selectedBomNo.value || '').split('###')
+  return ver ? `${no} (${ver})` : no
+})
 
 // 打印相关
 const currentTime = ref('')
@@ -715,13 +797,15 @@ const openBomSelect = async () => {
 }
 
 // 监听 BOM 选择变化，自动加载明细（含库存）并计算齐套性
-watch(selectedBomNo, async (newBomNo) => {
-  if (!newBomNo) {
+watch(selectedBomNo, async (newKey) => {
+  if (!newKey) {
     currentBomDetail.value = []
     return
   }
+  // ★ 组合 key 拆解为 bom_no + version，按选中版本精确拉取明细
+  const [bomNo, version] = newKey.split('###')
   try {
-    const detailRes: any = await getBomWithStock(newBomNo)
+    const detailRes: any = await getBomWithStock(bomNo, version)
     currentBomDetail.value = detailRes.data?.children || []
   } catch (e) {
     ElMessage.error('加载 BOM 明细失败')
@@ -734,7 +818,9 @@ const confirmBomAdd = async () => {
 
   if (currentBomDetail.value.length === 0) {
     try {
-      const detailRes: any = await getBomWithStock(selectedBomNo.value)
+      // ★ 组合 key 拆解为 bom_no + version，按选中版本精确拉取明细
+      const [bomNo, version] = (selectedBomNo.value || '').split('###')
+      const detailRes: any = await getBomWithStock(bomNo, version)
       currentBomDetail.value = detailRes.data?.children || []
     } catch (e) {
       ElMessage.error('获取 BOM 详情失败')
@@ -792,6 +878,51 @@ const confirmBomAdd = async () => {
   }
 }
 
+// ★ BOM 清单打印（复用与 confirmPrint 相同的 iframe 打印机制，与出库选单/借库选单一致）
+const printBomChecklist = () => {
+  if (bomDetailList.value.length === 0) return ElMessage.warning('请先选择 BOM 并加载清单')
+  bomPrintTime.value = new Date().toLocaleString('zh-CN')
+
+  setTimeout(() => {
+    const printElement = document.getElementById('bom-print-area')
+    if (!printElement) return
+
+    const iframe = document.createElement('iframe')
+    iframe.style.position = 'fixed'
+    iframe.style.right = '0'
+    iframe.style.bottom = '0'
+    iframe.style.width = '0'
+    iframe.style.height = '0'
+    iframe.style.border = '0'
+    document.body.appendChild(iframe)
+
+    const iframeDoc = iframe.contentWindow?.document
+    if (!iframeDoc) return
+    iframeDoc.open()
+    iframeDoc.write('<html><head><title>BOM 借库清单</title></head><body></body></html>')
+    iframeDoc.close()
+
+    const style = `
+      body { font-family: 'Microsoft YaHei', sans-serif; }
+      .print-bom-area { display: block !important; padding: 20px; }
+      .print-table { width: 100%; border-collapse: collapse; }
+      .print-table th, .print-table td { border: 1px solid #000; padding: 6px 8px; font-size: 13px; text-align: center; }
+      .print-table th { background: #f0f0f0; }
+    `;
+    const styleEl = iframeDoc.createElement('style')
+    styleEl.textContent = style
+    iframeDoc.head.appendChild(styleEl)
+
+    iframeDoc.body.appendChild(printElement.cloneNode(true))
+
+    setTimeout(() => {
+      iframe.contentWindow?.focus()
+      iframe.contentWindow?.print()
+      setTimeout(() => document.body.removeChild(iframe), 1000)
+    }, 500)
+  }, 300)
+}
+
 // 主界面数量变更逻辑
 const handleMainQuantityChange = (val: number | undefined, row: any) => {
   if (val === 0) {
@@ -900,6 +1031,8 @@ const openRequestDialog = () => {
   borrowerName.value = userStore.user?.username || ''
   requestRemark.value = ''
   requestApproverId.value = null
+  requestExpectedReturn.value = ''
+  requestIndefinite.value = false
   loadApprovers()
   requestDialogVisible.value = true
 }
@@ -915,7 +1048,27 @@ const loadApprovers = async () => {
   }
 }
 
+// ★ 长期借用勾选：勾选时清空已选的归还日期
+const handleRequestIndefiniteChange = (val: boolean) => {
+  if (val) requestExpectedReturn.value = ''
+}
+
 // ★ 确认提交借库申请
+// ★ 将 BOM 缺货清单拼接进申请原因（与出库选单一致）
+const buildRemarkWithShortage = (baseRemark: string): string => {
+  const parts: string[] = []
+  if (baseRemark) parts.push(baseRemark)
+
+  // ★ 用当前实时计算的缺货清单（需量 - 当前库存），而非 localStorage 历史记录
+  const shortageItems = bomDetailList.value.filter((i: any) => i.shortage > 0)
+  if (shortageItems.length > 0) {
+    const items = shortageItems.map((i: any) => `${i.name}(${i.shortage}个)`).join('、')
+    parts.push(`[BOM欠料待补] ${items}`)
+  }
+
+  return parts.join(' | ')
+}
+
 const confirmSubmitRequest = async () => {
   requestSubmitting.value = true
   try {
@@ -924,9 +1077,11 @@ const confirmSubmitRequest = async () => {
         name: item.name || '',
         spec_model: item.standard || '',
         warehouse_location: item.warehouse_location || '',
-        quantity: item.export_quantity || 0
+        quantity: item.export_quantity || 0,
+        expected_return_time: requestIndefinite.value ? null : requestExpectedReturn.value,
+        is_indefinite: requestIndefinite.value
       })),
-      remark: requestRemark.value.trim(),
+      remark: buildRemarkWithShortage(requestRemark.value.trim()),
       approver_id: requestApproverId.value
     }
 
diff --git a/inventory-web/src/views/borrow/approval/index.vue b/inventory-web/src/views/borrow/approval/index.vue
index 2aa2c4b..a67b496 100644
--- a/inventory-web/src/views/borrow/approval/index.vue
+++ b/inventory-web/src/views/borrow/approval/index.vue
@@ -76,6 +76,15 @@
         </template>
       </el-table-column>
 
+      <el-table-column label="归还期限" width="130" align="center">
+        <template #default="{ row }">
+          <span v-if="getReturnDeadline(row)" :style="row?.items?.[0]?.is_indefinite ? 'color:#E6A23C;font-weight:bold;' : ''">
+            {{ getReturnDeadline(row) }}
+          </span>
+          <span v-else style="color: #909399;">未填写</span>
+        </template>
+      </el-table-column>
+
       <el-table-column prop="created_at" label="申请时间" width="170" />
 
       <el-table-column label="状态" width="100" align="center">
@@ -219,6 +228,14 @@ const getApplicantName = (id: number | null) => {
   return userNameCache.value[id] ?? `用户 #${id}`
 }
 
+// 从申请单明细快照中读取归还期限（旧申请单无此字段时返回空串）
+const getReturnDeadline = (row: any) => {
+  const first = row?.items?.[0]
+  if (first?.is_indefinite) return '长期借用'
+  if (first?.expected_return_time) return first.expected_return_time
+  return ''
+}
+
 const getApproverName = (id: number | null) => {
   if (!id) return '-'
   return userNameCache.value[id] ?? `用户 #${id}`
diff --git a/inventory-web/src/views/transaction/borrow.vue b/inventory-web/src/views/transaction/borrow.vue
index dbb0613..58f4058 100644
--- a/inventory-web/src/views/transaction/borrow.vue
+++ b/inventory-web/src/views/transaction/borrow.vue
@@ -416,11 +416,25 @@ const loadApprovalRequests = async () => {
   }
 }
 
-// ★ 切换审批单时：清空购物车和签名，防止跨单据污染
+// ★ 切换审批单时：带出申请时填写的归还日期/长期借用，并清空购物车和签名，防止跨单据污染
 const handleApprovalChange = (val: number | null) => {
   if (!val) {
     selectedApprovalId.value = null
   }
+  // 从申请单明细快照中带出"预计归还日期"（申请时通过 items_json 存储，无需改数据库）
+  const req = approvalRequests.value.find(r => r.id === val)
+  const firstItem = req?.items?.[0]
+  if (firstItem?.is_indefinite) {
+    isIndefinite.value = true
+    form.expected_return_time = ''
+  } else if (firstItem?.expected_return_time) {
+    isIndefinite.value = false
+    form.expected_return_time = firstItem.expected_return_time
+  } else {
+    // 旧申请单/未填时间：保持手动选择
+    isIndefinite.value = false
+    form.expected_return_time = ''
+  }
   cartItems.value = []
   signatureFile.value = null
   signaturePreviewUrl.value = ''