diff --git a/rate/rate.go b/rate/rate.go
index 0d0ef89..6db179f 100644
--- a/rate/rate.go
+++ b/rate/rate.go
@@ -70,6 +70,10 @@ func (c *Controller) rate(ctx context.Context, idString string) error {
 	for _, provider := range article.Providers {
 		final := provider.Cost.FinalPrice
 		if final > 0 && (final < cost || cost == 0) && !provider.Exclude {
+			if available && !provider.Available {
+				// 上个最低价供应商能买，这个供应商不能买，那么即使现在的供应商价格更低，也不使用
+				continue
+			}
 			cost = final
 		}
 		available = available || provider.Available