diff --git a/client.go b/client.go
index 0af0643..e8b6508 100644
--- a/client.go
+++ b/client.go
@@ -75,7 +75,7 @@ func (o *OwnClient) Exec(ctx context.Context, instanceFlag string, command const
 	)
 
 	cmdParamList := []any{
-		command,
+		strings.ToLower(command.String()), // redis 命令不区分大小写， 统一使用小写
 	}
 	argStrList := make([]string, 0)
 	for _, itemArg := range args {