Yi people in Liangshan flatland regions refers to those live in flatland regions near An Ning Riv-er.They plant rice and are deeply affected by Han culture on their language,dressing,and custom.The paper will investigate and research into their funeral custom in Dashitou in Xi De and Manshuiwan in Mian Ning,and explain the culture changes and influence on the base of field investigation.The paper believes that the funeral change is not a kind of change at a single aspect,and it expresses its characteristics: culture congruence and culture selection.