Throughout the history, the relationship between the folk literature and written literature has drawn the attention of many domestic and foreign scientists. The attention not only focuses on the theoretical aspect but also specific and lively actual surveys. However, it can be said that the relationship between the folk literature and written literature is truly a fruitful soil with huge potential to be exploited. In addition, because the literature of minority ethnic groups was born late, it has not been studied comprehensively and systematically.