Abstract: The courts in China's Liangshan Yi Autonomous Prefecture have built a system which invites "Degu" specially a people's assessor for turning them to conciliation advantages and optimizing civil mediation, which is on the basis of Degu's traditions and advantages in Liangshan Yi Autonomous Prefecture after many years of the courts' exploration and practice. However, there are still some problems in the system of special people's assessor, so it is necessary to train them in legal knowledge and strengthen to guide them in mediation, so as to improve and perfect the system of special people's assessor under the guidance of the national law while combining with the Yi's customs.