Abstract: As the connotation of social relation,ethnic relation takes the existence of different ethnic groups as the premise of formation and development and the ethnic exchange as the link,relying on a certain geographical space as the field.Villages in a country are the basic nodes of the society,families being the basic units of these social nodes.As an important place for ethnic individual survival and development,family is an important field for the formation of ethnic relations and the basis for individuals and ethnic groups to extend the internal and external social space.The ethnographic method is used to investigate the ethnic relations of the marriage and family in Zhengjiazhuang Village of Dali,a village with seven ethnic groups.In theory,this is an effective attempt to approach the tool from the part to the whole.In practice,it can be used as a micro way to understand the pluralistic pattern of the Chinese nation and to think about the daily life path to shape the consciousness of the Chinese nation's community.

Key words: Zhengjiazhuang；multi-ethnic village, marriage and family, ethnic relations