Now it is necessary to try to find a new way of researches on oral literature. For the purpose of that, first of all, we must have a earnest and lively discussion about the identity of researches on oral literature. This study hopes that a science of text can help researches on oral literature in this work. Above all, researches on oral literature must have an assumption that oral text is moving continuously. And it must not be considered very important to find out a definitely settled meaning. It is important that we understand the mean-process to product many senses. And researches on oral literature must be based on the basic properties of oral text, for example, nonlinearity, interactivity, intertextuality and decentralization. Especially a science of text takes an interest in these properties. It is in the critical mind that a science of text is friendly with researches on oral literature. This study is based on this critical mind and tries to find the interrelationship in the study of methods. This study is focused on the cognitive process in text-production and text-consumption and researches the text activities and its mean-process. But it is only a trial. If many conditions, for example, the development of a science of hypertext, the continuous extension of cyberspace and oral cultural condition and the rapid progress of technology are provided, new and deep researches on oral literature can be achieved.