Sichuan Liangshan Yi nationality area geographical characteristics,unique folk customs gave birth to the rich "Sichuan cavity Shu Yun" folk songs,realizes the combination of music and literature,shows the unique artistic charm in the aspects of subject matter,rhythm,musical structure and accompaniment music etc.Liangshan Yi original ecological folk songs as a non-material cultural heritage,is an important tool in the daily life the Yi people to communicate effectively with each other,form and oral literature and art activities. Liangshan Yi people on the folk songs of the deep feelings,whether relatives, or a major holiday, with songs to express feelings, comprehensive display of the spirit and temperament and character,is an important manifestation of the traditional culture of the Yi nationality. Therefore,study of Liangshan Yi folk art characteristic,the cognitive level of Liangshan Yi folk art,has important practical value