diff --git a/pkg/util/qcloud/eip.go b/pkg/util/qcloud/eip.go
index 3987d6f82c..fb266e2f07 100644
--- a/pkg/util/qcloud/eip.go
+++ b/pkg/util/qcloud/eip.go
@@ -257,6 +257,9 @@ func (region *SRegion) AllocateEIP(name string, bwMbps int, chargeType TInternet
 	if err != nil {
 		return nil, err
 	}
+	if len(name) > 20 {
+		name = name[:20]
+	}
 	if len(addRessSet) > 0 {
 		params["AddressId"] = addRessSet[0]
 		params["AddressName"] = name