diff --git a/src/views/ebiz/common/CalculatePremium.vue b/src/views/ebiz/common/CalculatePremium.vue
index 9d11cc673..b3188a36a 100644
--- a/src/views/ebiz/common/CalculatePremium.vue
+++ b/src/views/ebiz/common/CalculatePremium.vue
@@ -246,7 +246,16 @@
       <!-- 只有万能险且只有建议书才展示 -->
       <van-field class="pv10" v-if="item.hasPredictTransferPrem === '0'" v-model="item.predictTransferPrem" label="预计转入保费" placeholder="请输入" />
       <div class="flex justify-content-s pv10 border-bottom" v-if="isRelated && isFrom != 'proposal'">
-        <van-field v-model="policyNo" clearable label="关联保单" name="关联保单号" maxlength="20" placeholder="请输入保单号/投保单号" />
+        <van-field
+          v-model="policyNo"
+          clearable
+          label="关联保单"
+          name="关联保单号"
+          maxlength="380"
+          type="textarea"
+          autosize
+          placeholder="请输入保单号/投保单号,请使用'\'(反斜杠)隔开多个保单号/投保单号"
+        />
       </div>
       <div class="flex justify-content-s pv10 border-bottom prem">
         <span
@@ -1276,7 +1285,14 @@ export default {
           }
         }
       }
-
+      // 验证格式
+      if (this.isRelated && this.isFrom != 'proposal' && this.policyNo) {
+        let vl = /^[0-9\\]+$/.test(this.policyNo)
+        if (!vl) {
+          return this.$toast('关联保单的格式不正确')
+        }
+      }
+      
       //组装险种提交数据
       let [mainRiskCode, riskDTOLst] = ['', []]
       let rollInResult = '' //校验预计转入保费结果