Abstract In recent years, studies of Taiwanese aboriginal literature have been given attentions due to the trend of localization in literature. Japanese scholars are the pioneers who are interested in and study Taiwanese aboriginal literature. They spend lots of efforts on studying Yami tribe much more than on other aborigines in Taiwan. The Yami did not have written language. They orally passed their culture on generation by generation. Therefore, they have abundant literature of oral tradition. Siyapenjipengaya, a Yami, worried that the Yami culture would be lost because of the assimilation to the Han nationality. He, therefore, recorded the culture features in literation. Yami is one of the Austronesian tribes, and they are the only aborigine who live near coasts in Taiwan. Their culture is much different from the other aborigines in Taiwan, and they are the only aborigine who do not have the tradition of headhunting and wine making. This study focused on the features of tribalism and cultural heritages in the works of Siyapenjipengaya. The works displaying tribalism were classified as the origins of the tribe, the spirits in traditional stories, life stories, and Anito¡¦s stories. The works displaying cultural heritages were classified as the knowledge of seas and oceans, cultural heritages, and Yami songs. By studying the folk stories and songs in the works of Siyapenjipengaya, the purpose of this study was to comprehend the custom and tradition of Yami culture.