diff --git a/src/views/contract/launch/components/mixedSignModal.vue b/src/views/contract/launch/components/mixedSignModal.vue
index bc3c19b..a9227f1 100644
--- a/src/views/contract/launch/components/mixedSignModal.vue
+++ b/src/views/contract/launch/components/mixedSignModal.vue
@@ -521,30 +521,30 @@
                 </div>
               </div>
 
-              <div v-if="counterpartyPartyNames.length" class="counterparty-confirm-section">
+              <div v-if="counterpartyConfirmItems.length" class="counterparty-confirm-section">
                 <div class="counterparty-confirm-title">相对方签署确认</div>
                 <div
-                  v-for="name in counterpartyPartyNames"
-                  :key="name"
+                  v-for="item in counterpartyConfirmItems"
+                  :key="item.partyId || item.partnerId || item.companyName"
                   class="counterparty-confirm-row"
                 >
                   <span
-                    v-if="counterpartyConfirmMap[name]?.confirmed"
+                    v-if="item.confirmed"
                     class="confirm-status status-done"
                   >✓</span>
                   <span v-else class="confirm-status status-pending">○</span>
-                  <span class="confirm-name">{{ name }}</span>
+                  <span class="confirm-name">{{ item.companyName }}</span>
                   <span
-                    v-if="counterpartyConfirmMap[name]?.confirmed"
+                    v-if="item.confirmed"
                     class="confirm-method"
-                  >{{ counterpartyConfirmMap[name]?.method === 'manual' ? '（代确认）' : '（已确认）' }}</span>
+                  >{{ item.method === 'manual' ? '（代确认）' : '（已确认）' }}</span>
                   <a-button
                     v-else
                     size="small"
                     type="primary"
                     ghost
                     :loading="counterpartyConfirmLoading"
-                    @click="handleConfirmCounterparty(name)"
+                    @click="handleConfirmCounterparty(item)"
                   >我已签署完成</a-button>
                 </div>
                 <div v-if="unconfirmedPartyNames.length" class="counterparty-confirm-note">
@@ -1290,16 +1290,16 @@ const querySealTypes = ref([0, 20, 10, 30, 40, 50, 60]);
 const fetchingSeals = ref(false);
 const sealList = ref([]);
 const sealDefaultScale = ref(1.0);
-
-/** 解析相对方名单（分号分隔） */
-const counterpartyPartyNames = computed(() => {
-  const text = businessRecord.value?.counterpartySummary || '';
-  return text.split(/[；;]/).map(s => s.trim()).filter(Boolean);
-});
+const counterpartyConfirmItems = computed(
+  () => counterpartyConfirmMap.value?.items || [],
+);
 
 /** 未确认的相对方名单 */
 const unconfirmedPartyNames = computed(() => {
-  return counterpartyPartyNames.value.filter(name => !counterpartyConfirmMap.value[name]?.confirmed);
+  return counterpartyConfirmItems.value
+    .filter((item) => !item.confirmed)
+    .map((item) => item.companyName)
+    .filter(Boolean);
 });
 
 async function loadCounterpartyConfirm() {
@@ -1314,13 +1314,19 @@ async function loadCounterpartyConfirm() {
   counterpartyConfirmLoading.value = false;
 }
 
-async function handleConfirmCounterparty(companyName) {
+async function handleConfirmCounterparty(item = {}) {
   if (!businessRecord.value?.id) return;
+  if (!item.partyId) {
+    message.error("缺少相对方标识，无法确认");
+    return;
+  }
   try {
-    const res = await confirmCounterparty(businessRecord.value.id, { companyName });
+    const res = await confirmCounterparty(businessRecord.value.id, {
+      partyId: String(item.partyId),
+    });
     if (isSuccessResponse(res) && res.result) {
       counterpartyConfirmMap.value = res.result || {};
-      message.success(`已确认：${companyName}`);
+      message.success(`已确认：${item.companyName || "相对方"}`);
     } else {
       message.error(getResponseMessage(res, '确认失败'));
     }