diff --git a/src/views/modules/quotation/requestForQuote.vue b/src/views/modules/quotation/requestForQuote.vue
index a1c6e89..f766663 100644
--- a/src/views/modules/quotation/requestForQuote.vue
+++ b/src/views/modules/quotation/requestForQuote.vue
@@ -874,7 +874,8 @@ export default {
       this.getApprovalList();
     },
     'modalData.customerNo'(newV, oldV) {
-      if (oldV) {
+      // 修复：编辑模式（flag === '2'）时不触发清空，避免回填数据时误清空项目号
+      if (oldV && this.modalData.flag !== '2') {
         if (!newV) {
           this.modalData.customerDesc = ''
         }
@@ -885,7 +886,8 @@ export default {
       }
     },
     'modalData.projectId'(newV, oldV) {
-      if (oldV) {
+      // 修复：编辑模式（flag === '2'）时不触发清空，避免回填数据时误清空相关字段
+      if (oldV && this.modalData.flag !== '2') {
         if (!newV) {
           this.modalData.projectName = ''
         }