Abstract After Qin Shihuang unified the form of Chinese characters more than 2,000 years ago, Chinese generally note down and disseminate knowledge by the written characters. Though Indians already invented the characters a long time ago, they still had very firm oral tradition. For this reason, early Buddhist texts had very obvious characteristic of oral communications. Sutta-nipāta (also called The Group of Discourse) is considered to be the oldest Buddhist scriptures. The content of this book is poetry mostly, and very few chapters contain proses. This paper compared Sutta-nipāta and folk literature in Taiwan and China, and found that there were a lot of similar characteristics, such as repetitive structure, continuous Q-A structure, and formula structure. The authors of Buddhist texts learned the advantages of folk literature and oral literature, and let the dissemination of Buddhism becoming more extensive.