Abstract: Hakkas, migration of Yunnan started from Yuan Dynasty, which can be traced from Mao taihua，progenitor of Mao Zedong.The population of Maoshi Yongsheng has developed to 3,000 people, to the first 24. It has a population of 380,000 people Yongsheng county, 70% of the han and other for minorities. In the han nationality, 80 percent of the people claim to be hakka people. But through the survey of language, living habit, folk custom, Local-style dwelling houses building, Weddings funerals and grave forms, we discover that the language used for yongsheng han mandarin belongs to the north dialect in yunnan,and nobody uses hakka dialect.Besides,we cant find the custom of second burry, and the grave forms in the field is different from hakkas, and we also cant find hakka round house architecture.All this shows no hakka people inhabits in Yunnan Yongsheng,the descendent of hakka are mainly scattered.