diff --git a/src/api/payment/invoiceReceipt.js b/src/api/payment/invoiceReceipt.js
index 883f131..1cb8775 100644
--- a/src/api/payment/invoiceReceipt.js
+++ b/src/api/payment/invoiceReceipt.js
@@ -7,6 +7,15 @@ export const getList = (current, size, params) =>
 export const getDetail = id => request({ url: `${baseUrl}/detail`, method: 'get', params: { id } });
 export const queryInvoicePool = params =>
   request({ url: `${baseUrl}/invoice-pool`, method: 'get', params });
+export const downloadInvoicePoolAttachment = invoiceNo =>
+  // 金蝶票池发票文件下载（后端代理 A801-2 流式回源），耗时较普通接口长，放宽到 120s
+  request({
+    url: `${baseUrl}/invoice-pool/attachment/download`,
+    method: 'get',
+    params: { invoiceNo },
+    responseType: 'blob',
+    timeout: 120000,
+  });
 export const getSettlementCandidates = (keyword, receiptId) =>
   request({
     url: `${baseUrl}/settlement-candidates`,
diff --git a/src/components/kingdee-invoice-pool-dialog/main.vue b/src/components/kingdee-invoice-pool-dialog/main.vue
index dcca443..9ccc3ba 100644
--- a/src/components/kingdee-invoice-pool-dialog/main.vue
+++ b/src/components/kingdee-invoice-pool-dialog/main.vue
@@ -104,6 +104,24 @@
           <el-tag v-else type="info" size="small">未登记</el-tag>
         </template>
       </el-table-column>
+      <el-table-column label="附件" width="120" fixed="right" align="center">
+        <template #default="{ row }">
+          <el-link
+            type="primary"
+            :underline="false"
+            :disabled="attachmentBusy === row.invoiceNo"
+            @click.stop="viewAttachment(row)"
+            >查看</el-link
+          >
+          <el-link
+            type="primary"
+            :underline="false"
+            :disabled="attachmentBusy === row.invoiceNo"
+            @click.stop="downloadAttachment(row)"
+            >下载</el-link
+          >
+        </template>
+      </el-table-column>
       <el-table-column v-if="!multiple" label="操作" width="90" fixed="right" align="center">
         <template #default="{ row }">
           <el-link type="primary" @click.stop="confirmRows([row])">选择</el-link>
@@ -126,6 +144,12 @@
 </template>
 
 <script>
+import {
+  downloadKingdeeInvoiceFile,
+  isKingdeePathAttachment,
+  viewKingdeeInvoiceFile,
+} from '@/utils/kingdee-attachment';
+
 export default {
   name: 'KingdeeInvoicePoolDialog',
   props: {
@@ -156,6 +180,8 @@ export default {
       pendingCursor: null,
       // 已浏览页缓存：上一页直接回显不再请求（0 远程调用）
       pageCache: {},
+      // 正在查看/下载附件的发票号（行级 loading 守卫）
+      attachmentBusy: null,
       query: this.emptyQuery(),
     };
   },
@@ -184,6 +210,50 @@ export default {
     rowKey(row) {
       return row.invoiceNo || row.id;
     },
+    // 票池行附件字段为复数 attachmentsJson，行内首项即发票文件（{source,path,name}）
+    rowAttachment(row = {}) {
+      const value = row.attachmentsJson;
+      if (!value) return null;
+      let parsed = value;
+      if (typeof value === 'string') {
+        try {
+          parsed = JSON.parse(value);
+        } catch {
+          return null;
+        }
+      }
+      return Array.isArray(parsed) ? parsed[0] || null : parsed || null;
+    },
+    attachmentName(row) {
+      const attachment = this.rowAttachment(row);
+      return attachment?.name || `${row.invoiceNo || '发票'}.pdf`;
+    },
+    async viewAttachment(row) {
+      const attachment = this.rowAttachment(row);
+      if (!isKingdeePathAttachment(attachment)) {
+        this.$message.warning('当前发票暂无可查看附件');
+        return;
+      }
+      this.attachmentBusy = row.invoiceNo;
+      try {
+        await viewKingdeeInvoiceFile(row.invoiceNo, this.attachmentName(row));
+      } finally {
+        this.attachmentBusy = null;
+      }
+    },
+    async downloadAttachment(row) {
+      const attachment = this.rowAttachment(row);
+      if (!isKingdeePathAttachment(attachment)) {
+        this.$message.warning('当前发票暂无可下载附件');
+        return;
+      }
+      this.attachmentBusy = row.invoiceNo;
+      try {
+        await downloadKingdeeInvoiceFile(row.invoiceNo, this.attachmentName(row));
+      } finally {
+        this.attachmentBusy = null;
+      }
+    },
     handleOpen() {
       this.query = this.emptyQuery();
       this.query.invoiceNo = this.initialInvoiceNo || '';
diff --git a/src/utils/kingdee-attachment.js b/src/utils/kingdee-attachment.js
new file mode 100644
index 0000000..c66a970
--- /dev/null
+++ b/src/utils/kingdee-attachment.js
@@ -0,0 +1,90 @@
+/**
+ * 金蝶侧发票附件查看/下载公共工具
+ *
+ * 票池发票附件为 {source:'piaozone', path, name}：path 是金蝶侧文件 id（非 http 直链），
+ * 须由后端代理 A801-2 流式回源；OSS 直链附件（url/link/fileUrl）仍由前端直连下载/预览。
+ * 三处入口共用：票池弹窗、正式结算认领发票行、付款申请发票附件行。
+ */
+import { ElMessage } from 'element-plus';
+import { downloadFile } from '@/utils/util';
+import { downloadInvoicePoolAttachment } from '@/api/payment/invoiceReceipt';
+
+/**
+ * 金蝶侧附件判定：source=piaozone，或有 path 且非 http(s) 直链
+ * @param {Object|Null} attachment 附件对象（attachmentsJson/attachmentJson 行内首项）
+ * @returns {Boolean}
+ */
+export const isKingdeePathAttachment = attachment => {
+  if (!attachment) return false;
+  if (attachment.source === 'piaozone') return true;
+  return Boolean(attachment.path) && !/^https?:\/\//i.test(attachment.path);
+};
+
+/**
+ * 请求金蝶文件流：成功返回 Blob；业务失败为 HTTP 200 + R.fail JSON（响应通道未写流时后端即失败），
+ * 按 Content-Type 识别并抛出带 msg 的错误；网络级失败拦截器已提示，标记 silent 避免重复提示
+ * @param {String} invoiceNo 发票号码
+ * @returns {Promise<Blob>}
+ */
+const requestKingdeeFile = async invoiceNo => {
+  let res;
+  try {
+    res = await downloadInvoicePoolAttachment(invoiceNo);
+  } catch (error) {
+    throw Object.assign(new Error(error?.message || '附件下载失败'), { silent: true });
+  }
+  const blob = res?.data;
+  if (!(blob instanceof Blob)) {
+    throw new Error('响应不是文件流');
+  }
+  if (blob.type && blob.type.includes('application/json')) {
+    let message = '附件下载失败';
+    try {
+      const parsed = JSON.parse(await blob.text());
+      message = parsed.msg || parsed.message || message;
+    } catch {
+      // 错误体非 JSON 时按默认提示
+    }
+    throw new Error(message);
+  }
+  return blob;
+};
+
+/**
+ * 下载金蝶侧发票附件（经 A801-2 后端代理），失败统一 ElMessage 提示
+ * @param {String} invoiceNo 发票号码
+ * @param {String} fileName 下载文件名（缺省按 发票号.pdf）
+ */
+export const downloadKingdeeInvoiceFile = async (invoiceNo, fileName) => {
+  if (!invoiceNo) {
+    ElMessage.warning('当前发票缺少发票号码，无法下载金蝶侧附件');
+    return;
+  }
+  try {
+    const blob = await requestKingdeeFile(invoiceNo);
+    downloadFile(blob, fileName || `${invoiceNo}.pdf`);
+  } catch (error) {
+    if (!error?.silent) ElMessage.error(error?.message || '金蝶附件下载失败');
+  }
+};
+
+/**
+ * 新窗口预览金蝶侧发票附件：拉取 Blob 转 objectURL（PDF 可预览；OFD 等浏览器不可预览的格式由浏览器触发下载）
+ * @param {String} invoiceNo 发票号码
+ * @param {String} fileName 预览文件名（缺省按 发票号.pdf）
+ */
+export const viewKingdeeInvoiceFile = async (invoiceNo, fileName) => {
+  if (!invoiceNo) {
+    ElMessage.warning('当前发票缺少发票号码，无法预览金蝶侧附件');
+    return;
+  }
+  try {
+    const blob = await requestKingdeeFile(invoiceNo);
+    const url = URL.createObjectURL(blob);
+    window.open(url, '_blank');
+    // 延迟释放 objectURL：立即回收可能导致新窗口尚未加载完成即失效
+    setTimeout(() => URL.revokeObjectURL(url), 60000);
+  } catch (error) {
+    if (!error?.silent) ElMessage.error(error?.message || '金蝶附件预览失败');
+  }
+};
diff --git a/src/views/payment/payment-application-form.vue b/src/views/payment/payment-application-form.vue
index 13cee87..fd4c796 100644
--- a/src/views/payment/payment-application-form.vue
+++ b/src/views/payment/payment-application-form.vue
@@ -237,8 +237,18 @@
           <el-table-column label="操作" width="220" fixed="right" align="center">
             <template #default="{ row, $index }">
               <div class="payment-form-page__invoice-actions">
-                <el-link type="primary" @click="viewInvoiceAttachment(row)">查看</el-link>
-                <el-link type="primary" @click="downloadInvoiceAttachment(row)">下载</el-link>
+                <el-link
+                  type="primary"
+                  :disabled="kingdeeAttachmentBusy"
+                  @click="viewInvoiceAttachment(row)"
+                  >查看</el-link
+                >
+                <el-link
+                  type="primary"
+                  :disabled="kingdeeAttachmentBusy"
+                  @click="downloadInvoiceAttachment(row)"
+                  >下载</el-link
+                >
                 <el-link
                   v-if="!readonly"
                   type="danger"
@@ -608,6 +618,11 @@ import {
 } from '@/api/vehicle/customer-archive';
 import { readSettlementTransfer, removeSettlementTransfer } from '@/utils/settlement-transfer';
 import { downloadFileByUrl } from '@/utils/util';
+import {
+  downloadKingdeeInvoiceFile,
+  isKingdeePathAttachment,
+  viewKingdeeInvoiceFile,
+} from '@/utils/kingdee-attachment';
 import PdfPreview from '@/components/pdf-preview/main.vue';
 
 const attachmentViewerPlugins = [
@@ -688,6 +703,8 @@ export default {
       form: emptyForm(),
       amountSyncing: false,
       transferPayload: null,
+      // 金蝶侧发票附件查看/下载进行中（行组级 loading 守卫）
+      kingdeeAttachmentBusy: false,
       referenceRows: [],
       paymentRecords: [],
       referenceVisible: false,
@@ -1390,8 +1407,19 @@ export default {
         this.attachmentFileName(this.invoiceAttachment(row)) || `${row.invoiceNo || '发票'}.pdf`
       );
     },
-    viewInvoiceAttachment(row) {
+    async viewInvoiceAttachment(row) {
       const attachment = this.invoiceAttachment(row);
+      // 金蝶侧附件（path 型）经后端代理 A801-2 预览，OSS 直链维持本地预览组件
+      if (isKingdeePathAttachment(attachment)) {
+        if (this.kingdeeAttachmentBusy) return;
+        this.kingdeeAttachmentBusy = true;
+        try {
+          await viewKingdeeInvoiceFile(row.invoiceNo, this.invoiceAttachmentName(row));
+        } finally {
+          this.kingdeeAttachmentBusy = false;
+        }
+        return;
+      }
       if (!this.attachmentFileUrl(attachment)) {
         this.$message.warning('当前发票暂无可查看附件');
         return;
@@ -1401,8 +1429,20 @@ export default {
         [attachment]
       );
     },
-    downloadInvoiceAttachment(row) {
-      const url = this.invoiceAttachmentUrl(row);
+    async downloadInvoiceAttachment(row) {
+      const attachment = this.invoiceAttachment(row);
+      // 金蝶侧附件（path 型）经后端代理 A801-2 下载，OSS 直链维持前端直连下载
+      if (isKingdeePathAttachment(attachment)) {
+        if (this.kingdeeAttachmentBusy) return;
+        this.kingdeeAttachmentBusy = true;
+        try {
+          await downloadKingdeeInvoiceFile(row.invoiceNo, this.invoiceAttachmentName(row));
+        } finally {
+          this.kingdeeAttachmentBusy = false;
+        }
+        return;
+      }
+      const url = this.attachmentFileUrl(attachment);
       if (!url) {
         this.$message.warning('当前发票暂无可下载附件');
         return;
diff --git a/src/views/settlement/components/formal-settlement-editor.vue b/src/views/settlement/components/formal-settlement-editor.vue
index 4164bc7..2dcac74 100644
--- a/src/views/settlement/components/formal-settlement-editor.vue
+++ b/src/views/settlement/components/formal-settlement-editor.vue
@@ -403,8 +403,18 @@
           <el-table-column label="操作" width="220" align="center">
             <template #default="{ row, $index }">
               <div class="formal-editor__links">
-                <el-link type="primary" @click="viewInvoiceAttachment(row)">查看</el-link>
-                <el-link type="primary" @click="downloadInvoiceAttachment(row)">下载</el-link>
+                <el-link
+                  type="primary"
+                  :disabled="kingdeeAttachmentBusy"
+                  @click="viewInvoiceAttachment(row)"
+                  >查看</el-link
+                >
+                <el-link
+                  type="primary"
+                  :disabled="kingdeeAttachmentBusy"
+                  @click="downloadInvoiceAttachment(row)"
+                  >下载</el-link
+                >
                 <el-link v-if="editable" type="danger" @click="removeInvoice($index)">删除</el-link>
               </div>
             </template>
@@ -915,6 +925,11 @@ import { h } from 'vue';
 import { InfoFilled } from '@element-plus/icons-vue';
 import { mapGetters } from 'vuex';
 import { downloadFileByUrl } from '@/utils/util';
+import {
+  downloadKingdeeInvoiceFile,
+  isKingdeePathAttachment,
+  viewKingdeeInvoiceFile,
+} from '@/utils/kingdee-attachment';
 import KingdeeInvoicePoolDialog from '@/components/kingdee-invoice-pool-dialog/main.vue';
 import * as XLSX from 'xlsx';
 
@@ -950,6 +965,8 @@ export default {
       invoices: [],
       invoiceClaimNo: '',
       invoiceClaimLoading: false,
+      // 金蝶侧发票附件查看/下载进行中（行组级 loading 守卫）
+      kingdeeAttachmentBusy: false,
       invoiceClaimDialog: {
         visible: false,
         selected: [],
@@ -2293,12 +2310,36 @@ export default {
       const attachment = this.invoiceAttachment(row);
       return attachment.originalName || attachment.name || `${row.invoiceNo || '发票'}.pdf`;
     },
-    viewInvoiceAttachment(row) {
+    async viewInvoiceAttachment(row) {
+      const attachment = this.invoiceAttachment(row);
+      // 金蝶侧附件（path 型）经后端代理 A801-2 预览，OSS 直链维持 window.open
+      if (isKingdeePathAttachment(attachment)) {
+        if (this.kingdeeAttachmentBusy) return;
+        this.kingdeeAttachmentBusy = true;
+        try {
+          await viewKingdeeInvoiceFile(row.invoiceNo, this.invoiceAttachmentName(row));
+        } finally {
+          this.kingdeeAttachmentBusy = false;
+        }
+        return;
+      }
       const url = this.invoiceAttachmentUrl(row);
       if (!url) return this.$message.warning('当前发票暂无可查看附件');
       window.open(url, '_blank');
     },
-    downloadInvoiceAttachment(row) {
+    async downloadInvoiceAttachment(row) {
+      const attachment = this.invoiceAttachment(row);
+      // 金蝶侧附件（path 型）经后端代理 A801-2 下载，OSS 直链维持前端直连下载
+      if (isKingdeePathAttachment(attachment)) {
+        if (this.kingdeeAttachmentBusy) return;
+        this.kingdeeAttachmentBusy = true;
+        try {
+          await downloadKingdeeInvoiceFile(row.invoiceNo, this.invoiceAttachmentName(row));
+        } finally {
+          this.kingdeeAttachmentBusy = false;
+        }
+        return;
+      }
       const url = this.invoiceAttachmentUrl(row);
       if (!url) return this.$message.warning('当前发票暂无可下载附件');
       downloadFileByUrl(url, this.invoiceAttachmentName(row));