diff --git a/src/views/erp/product/product/ProductForm.vue b/src/views/erp/product/product/ProductForm.vue
index 06247569..e939214f 100644
--- a/src/views/erp/product/product/ProductForm.vue
+++ b/src/views/erp/product/product/ProductForm.vue
@@ -66,7 +66,7 @@
             <el-form-item :label="t('FactoryModeling.ProductInformation.dialogUnitLabel')" prop="unitId">
               <el-select v-model="formData.unitId" clearable :placeholder="t('FactoryModeling.ProductInformation.dialogUnitPlaceholder')" class="w-1/1">
                 <el-option
-                  v-for="unit in unitList"
+                  v-for="unit in inventoryUnitOptions"
                   :key="unit.id"
                   :label="unit.name"
                   :value="unit.id"
@@ -165,6 +165,24 @@
               <el-input v-model="formData.brand" :placeholder="t('FactoryModeling.ProductInformation.dialogBrandPlaceholder')" />
             </el-form-item>
           </el-col>
+          <el-col v-if="formData.categoryType === 2 || formData.categoryType === 3" :span="12">
+            <el-form-item :label="t('FactoryModeling.ProductInformation.dialogPurchaseUnitLabel')" prop="purchaseUnitId">
+              <el-select v-model="formData.purchaseUnitId" clearable :placeholder="t('FactoryModeling.ProductInformation.dialogUnitPlaceholder')" class="w-1/1" @change="handlePurchaseUnitChange">
+                <el-option
+                  v-for="unit in purchaseUnitOptions"
+                  :key="unit.id"
+                  :label="unit.name"
+                  :value="unit.id"
+                />
+              </el-select>
+            </el-form-item>
+          </el-col>
+          <el-col v-if="formData.categoryType === 2 || formData.categoryType === 3" :span="12">
+            <el-form-item :label="t('FactoryModeling.ProductInformation.dialogPurchaseUnitConvertLabel')" prop="purchaseUnitConvertQuantity">
+              <el-input-number v-model="formData.purchaseUnitConvertQuantity" :min="1" :precision="0" class="!w-1/1" />
+              <div class="form-item-tip">{{ purchaseUnitConvertTipText }}</div>
+            </el-form-item>
+          </el-col>
           <el-col :span="12">
             <el-form-item :label="t('FactoryModeling.ProductInformation.dialogStatusLabel')" prop="status">
               <el-radio-group v-model="formData.status">
@@ -458,7 +476,10 @@ const formData = ref({
   purchaseCycle: undefined as number | undefined,
   brand: undefined as string | undefined,
   images: undefined as string | undefined,
-  sparePartLevel: undefined as number | undefined
+  sparePartLevel: undefined as number | undefined,
+  purchaseUnitId: undefined as string | undefined,
+  purchaseUnitName: undefined as string | undefined,
+  purchaseUnitConvertQuantity: undefined as number | undefined
 })
 const selectedDeviceRows = ref<any[]>([])
 const selectedMoldRows = ref<any[]>([])
@@ -884,12 +905,30 @@ const formRules = reactive({
   categoryId: [{ required: true, message: t('FactoryModeling.ProductInformation.validatorCategoryRequired'), trigger: 'blur' }],
   unitId: [{ required: true, message: t('FactoryModeling.ProductInformation.validatorUnitRequired'), trigger: 'blur' }],
   status: [{ required: true, message: t('FactoryModeling.ProductInformation.validatorStatusRequired'), trigger: 'blur' }],
-  packagingSchemes: [{ validator: validatePackagingSchemes, trigger: 'change' }],
-  suppliers: [{ validator: validateSuppliers, trigger: 'change' }]
+  packagingSchemes: [{ required: true, validator: validatePackagingSchemes, trigger: ['change', 'blur'] }],
+  suppliers: [{ required: true, validator: validateSuppliers, trigger: ['change', 'blur'] }],
+  purchaseUnitId: [{ required: true, message: t('FactoryModeling.ProductInformation.validatorPurchaseUnitRequired'), trigger: 'change' }],
+  purchaseUnitConvertQuantity: [{ required: true, message: t('FactoryModeling.ProductInformation.validatorPurchaseUnitConvertRequired'), trigger: 'blur' }]
 })
 const formRef = ref()
 const categoryList = ref<ProductCategoryVO[]>([])
 const unitList = ref<ProductUnitVO[]>([])
+const inventoryUnitOptions = computed(() => {
+  if (!formData.value.purchaseUnitId) return unitList.value
+  return unitList.value.filter((u: any) => u.id !== formData.value.purchaseUnitId)
+})
+const purchaseUnitOptions = computed(() => {
+  if (!formData.value.unitId) return unitList.value
+  return unitList.value.filter((u: any) => u.id !== formData.value.unitId)
+})
+const purchaseUnitConvertTipText = computed(() => {
+  const inventoryUnitName = unitList.value.find((u: any) => u.id === formData.value.unitId)?.name
+  const purchaseUnitName = unitList.value.find((u: any) => u.id === formData.value.purchaseUnitId)?.name
+  const qty = formData.value.purchaseUnitConvertQuantity
+  const base = t('FactoryModeling.ProductInformation.dialogPurchaseUnitConvertTip')
+  if (!inventoryUnitName || !purchaseUnitName || !qty) return base
+  return `${base}（${inventoryUnitName} = ${qty} × ${purchaseUnitName}）`
+})
 const packagingSchemeList = ref<any[]>([])
 const supplierList = ref<any[]>([])
 
@@ -981,10 +1020,22 @@ const handleCategoryTypeChange = async () => {
   formData.value.purchaseCycle = undefined
   formData.value.brand = undefined
   formData.value.sparePartLevel = undefined
+  formData.value.purchaseUnitId = undefined
+  formData.value.purchaseUnitName = undefined
+  formData.value.purchaseUnitConvertQuantity = undefined
   const categoryData = await ProductCategoryApi.getProductCategorySimpleList(formData.value.categoryType)
   categoryList.value = handleTree(categoryData, 'id', 'parentId')
 }
 
+const handlePurchaseUnitChange = (val: any) => {
+  if (!val) {
+    formData.value.purchaseUnitName = undefined
+    return
+  }
+  const unit = unitList.value.find((u: any) => u.id === val)
+  formData.value.purchaseUnitName = unit?.name ?? undefined
+}
+
 const getQrcodeRefreshUrl = () => {
   if (!formData.value.id || !formData.value.barCode) return ''
   return `/erp/product/regenerate-code?id=${formData.value.id}&code=${encodeURIComponent(String(formData.value.barCode))}`
@@ -1088,7 +1139,10 @@ const resetForm = () => {
     fragileFlag: undefined,
     purchaseCycle: undefined,
     brand: undefined,
-    sparePartLevel: undefined
+    sparePartLevel: undefined,
+    purchaseUnitId: undefined,
+    purchaseUnitName: undefined,
+    purchaseUnitConvertQuantity: undefined
   }
   selectedDeviceRows.value = []
   selectedMoldRows.value = []
@@ -1170,4 +1224,11 @@ watch(
     padding: 16px;
   }
 }
+
+.form-item-tip {
+  font-size: 12px;
+  color: var(--el-text-color-placeholder);
+  line-height: 1.4;
+  margin-top: 4px;
+}
 </style>
diff --git a/src/views/erp/product/product/index.vue b/src/views/erp/product/product/index.vue
index 8902381e..2aced0fc 100644
--- a/src/views/erp/product/product/index.vue
+++ b/src/views/erp/product/product/index.vue
@@ -195,6 +195,14 @@
                   </template>
                   <!-- 物料/备件类型：供应商 -->
                   <template v-if="productDetail.categoryType === 2 || productDetail.categoryType === 3">
+                    <div class="detail-field">
+                      <span class="field-label">{{ t('FactoryModeling.ProductInformation.dialogPurchaseUnitLabel') }}：</span>
+                      <span class="field-value">{{ formatValue(productDetail.purchaseUnitName) }}</span>
+                    </div>
+                    <div class="detail-field">
+                      <span class="field-label">{{ t('FactoryModeling.ProductInformation.dialogPurchaseUnitConvertLabel') }}：</span>
+                      <span class="field-value">{{ formatPurchaseUnitConvert(productDetail) }}</span>
+                    </div>
                     <div class="detail-field">
                       <span class="field-label">{{ t('FactoryModeling.ProductInformation.dialogSupplierLabel') }}：</span>
                       <span class="field-value">{{ formatSupplierText(productDetail) }}</span>
@@ -559,6 +567,13 @@ const formatSparePartLevel = (value: any) => {
   return dictItem?.label || formatValue(value)
 }
 
+const formatPurchaseUnitConvert = (detail: any) => {
+  if (!detail?.purchaseUnitConvertQuantity) return '-'
+  const unitName = detail.unitName || ''
+  const purchaseUnitName = detail.purchaseUnitName || ''
+  return `${unitName} = ${detail.purchaseUnitConvertQuantity} × ${purchaseUnitName}`
+}
+
 const sparePartLevelDict = computed(() => getIntDictOptions(DICT_TYPE.SPARE_PARTS_LEVEL))
 
 const formatValue = (value: any) => {