Based on the relations between Buddhism and literature, this paper, whose subject is about single vehicle and literature characteristics in Lotus Sutra, is the research work of the Buddhist literature. The paper is divided into three parts: 1 、 the original sutra of Lotus Sutra and its spread through translations and notes.2、 the concept of Lotus Sutra. 3、 the research on literature characteristics of the sutra, especially the literal meaning in the preface of Lotus Sutra and the art of metaphor.Chapter 1 e...