diff --git a/src/views/erp/product/product/ProductForm.vue b/src/views/erp/product/product/ProductForm.vue
index 4488191a..9f016714 100644
--- a/src/views/erp/product/product/ProductForm.vue
+++ b/src/views/erp/product/product/ProductForm.vue
@@ -289,7 +289,13 @@
       <el-table-column :label="t('ErpStock.PackagingScheme.palletTotalQuantity')" prop="palletTotalQuantity" minWidth="120" />
       <el-table-column :label="t('FactoryModeling.ProductInformation.dialogDefaultStatusLabel')" width="130" align="center">
         <template #default="{ row }">
-          <el-radio v-model="packagingSchemeDefaultId" :label="row.id">&nbsp;</el-radio>
+          <el-radio
+            v-model="packagingSchemeDefaultId"
+            :label="row.id"
+            :disabled="!packagingSchemeSelectedRows.some((item) => item.id === row.id)"
+          >
+            &nbsp;
+          </el-radio>
         </template>
       </el-table-column>
     </el-table>
@@ -333,9 +339,15 @@
       <el-table-column :label="t('ErpPurchase.Supplier.contact')" prop="contact" minWidth="100" />
       <el-table-column :label="t('ErpPurchase.Supplier.mobile')" prop="mobile" minWidth="120" />
       <el-table-column :label="t('ErpPurchase.Supplier.telephone')" prop="telephone" minWidth="120" />
-      <el-table-column :label="t('FactoryModeling.ProductInformation.dialogDefaultStatusLabel')" width="130" align="center">
+      <el-table-column label="是否默认供应商" width="130" align="center">
         <template #default="{ row }">
-          <el-radio v-model="supplierDefaultId" :label="row.id">&nbsp;</el-radio>
+          <el-radio
+            v-model="supplierDefaultId"
+            :label="row.id"
+            :disabled="!supplierSelectedRows.some((item) => item.id === row.id)"
+          >
+            &nbsp;
+          </el-radio>
         </template>
       </el-table-column>
     </el-table>
@@ -662,6 +674,14 @@ const getPackagingSchemeDialogList = async () => {
 
 const handlePackagingSchemeSelectionChange = (selection: any[]) => {
   packagingSchemeSelectedRows.value = selection
+  if (!selection.length) {
+    packagingSchemeDefaultId.value = undefined
+    return
+  }
+  const selectedIds = selection.map((item) => item.id)
+  if (selection.length === 1 || !selectedIds.includes(packagingSchemeDefaultId.value)) {
+    packagingSchemeDefaultId.value = selection[0].id
+  }
 }
 
 const displayPackagingSchemeText = computed(() => {
@@ -703,6 +723,9 @@ const confirmPackagingSchemeSelect = () => {
     message.warning(t('FactoryModeling.ProductInformation.validatorPackagingSchemeRequired'))
     return
   }
+  if (!packagingSchemeDefaultId.value) {
+    packagingSchemeDefaultId.value = packagingSchemeSelectedRows.value[0].id
+  }
   formData.value.packagingSchemes = packagingSchemeSelectedRows.value.map((row) => ({
     packagingSchemeId: row.id,
     defaultStatus: row.id === packagingSchemeDefaultId.value ? 1 : 0
@@ -764,6 +787,14 @@ const getSupplierDialogList = async () => {
 
 const handleSupplierSelectionChange = (selection: any[]) => {
   supplierSelectedRows.value = selection
+  if (!selection.length) {
+    supplierDefaultId.value = undefined
+    return
+  }
+  const selectedIds = selection.map((item) => item.id)
+  if (selection.length === 1 || !selectedIds.includes(supplierDefaultId.value)) {
+    supplierDefaultId.value = selection[0].id
+  }
 }
 
 const displaySupplierText = computed(() => {
@@ -804,6 +835,9 @@ const confirmSupplierSelect = () => {
     message.warning(t('FactoryModeling.ProductInformation.validatorSupplierRequired'))
     return
   }
+  if (!supplierDefaultId.value) {
+    supplierDefaultId.value = supplierSelectedRows.value[0].id
+  }
   formData.value.suppliers = supplierSelectedRows.value.map((row) => ({
     supplierId: row.id,
     defaultStatus: row.id === supplierDefaultId.value ? 1 : 0