diff --git a/erp/purchase.go b/erp/purchase.go
index a63b8df..8fadadd 100644
--- a/erp/purchase.go
+++ b/erp/purchase.go
@@ -79,7 +79,6 @@ type PurchaseProduct struct {
 	CurrencyName   string                 // 币种名称
 	CurrencySymbol string                 // 币种符号
 	CurrencyRate   decimal.Decimal        // 币种汇率
-	MeasureUnit    string                 // 数量单位
 	Batches        []PurchaseProductBatch // 产品批次
 }
 type PurchaseProductBatch struct {