diff --git a/src/api/payment/invoiceReceipt.js b/src/api/payment/invoiceReceipt.js
index 79d2fab..4fecc7a 100644
--- a/src/api/payment/invoiceReceipt.js
+++ b/src/api/payment/invoiceReceipt.js
@@ -44,6 +44,9 @@ export const invoiceDetailQuery = invoiceNo =>
 // 先票后款：结算单认领收票单候选（审批通过且未被有效应付结算单认领）
 export const claimCandidates = keyword =>
   request({ url: `${baseUrl}/claim-candidates`, method: 'get', params: { keyword } });
+// 先票后款：结算单已认领收票登记列表（发票登记对话框回显已认领票）
+export const claimedReceipts = formalSettlementId =>
+  request({ url: `${baseUrl}/claimed-list`, method: 'get', params: { formalSettlementId } });
 
 export const approvalStatusOptions = [
   { label: '草稿', value: 'draft' },
diff --git a/src/views/settlement/components/formal-settlement-table-panel.vue b/src/views/settlement/components/formal-settlement-table-panel.vue
index 927e6fd..60fb4f7 100644
--- a/src/views/settlement/components/formal-settlement-table-panel.vue
+++ b/src/views/settlement/components/formal-settlement-table-panel.vue
@@ -23,6 +23,15 @@
         @click="$emit('payment')"
         >付款申请</el-button
       >
+      <!-- 先票后款：付款结算单审批通过后可发票登记（关联收票单并推送指定应付），选中一条付款结算单操作 -->
+      <el-button
+        v-if="showPaymentAction && hasPermission('invoice_register')"
+        type="primary"
+        plain
+        :disabled="!selection.length"
+        @click="emitSingle('invoiceRegister')"
+        >发票登记</el-button
+      >
       <el-button
         v-if="hasPermission('sync')"
         type="primary"
@@ -189,13 +198,6 @@ export default {
         row.kingdeeSyncStatus !== 'synced'
       )
         actions.push({ type: 'void', label: '作废', danger: true });
-      // 先票后款：付款结算单审批通过后可发票登记（关联收票单并推送指定应付）
-      if (
-        this.showPaymentAction &&
-        this.hasPermission('invoice_register') &&
-        row.approvalStatus === 'approved'
-      )
-        actions.push({ type: 'invoiceRegister', label: '发票登记' });
       return actions;
     },
     statusType(status) {
diff --git a/src/views/settlement/formal-settlement.vue b/src/views/settlement/formal-settlement.vue
index 9a6ae48..f8157dc 100644
--- a/src/views/settlement/formal-settlement.vue
+++ b/src/views/settlement/formal-settlement.vue
@@ -144,8 +144,11 @@
             <template #default="{ row }">{{ formatMoney(row.invoiceAmount) }}</template>
           </el-table-column>
           <el-table-column label="操作" width="90" fixed="right" align="center">
-            <template #default="{ $index }">
+            <template #default="{ row, $index }">
+              <!-- 已认领票回显：认领保存为增量逻辑不支持移除，仅新增票可移除 -->
+              <el-tag v-if="row.claimed" size="small">已认领</el-tag>
               <el-link
+                v-else
                 type="danger"
                 :disabled="invoiceRegisterDialog.saving"
                 @click="invoiceRegisterDialog.candidates.splice($index, 1)"
@@ -186,6 +189,7 @@ import { isAdministrator } from '@/utils/auth';
 import { downloadFile } from '@/utils/util';
 import * as api from '@/api/settlement/formalSettlement';
 import * as paymentApi from '@/api/payment/paymentApplication';
+import * as invoiceReceiptApi from '@/api/payment/invoiceReceipt';
 import { formalSettlementOption, kingdeeSyncName } from '@/option/settlement/formalSettlement';
 import organizationSearch from '@/mixins/organization-search';
 import FormalSettlementEditor from './components/formal-settlement-editor.vue';
@@ -682,10 +686,21 @@ export default {
       }
     },
     // 先票后款路径B：发票登记——认领收票单（claim-invoices 走增量认领并同步收票侧关系）
-    openInvoiceRegisterDialog(row) {
+    // 打开时回显本单已认领收票单（claimed 标记禁止移除），已认领过票的可直接保存推送补指定应付
+    async openInvoiceRegisterDialog(row) {
+      if ((row?.approvalStatus || '') !== 'approved') {
+        this.$message.warning('仅审批通过的付款结算单允许发票登记');
+        return;
+      }
       this.invoiceRegisterDialog.row = row || {};
       this.invoiceRegisterDialog.candidates = [];
       this.invoiceRegisterDialog.visible = true;
+      try {
+        const claimed = this.unwrapData(await invoiceReceiptApi.claimedReceipts(row.id)) || [];
+        this.invoiceRegisterDialog.candidates = claimed.map(item => ({ ...item, claimed: true }));
+      } catch (error) {
+        this.invoiceRegisterDialog.candidates = [];
+      }
     },
     addInvoiceRegisterCandidates(rows) {
       const existing = new Set(