In Yazhuo District Daofu County, the Tibetan have been holding particular marriage custom, such as matrilocal residence and walking marriage. The male predominant choices are male-leaving marriages, among all of them, there are 29.4% who choose male-leaving marriage and staying at home, there are 41.2% who choose marrying into and living with their brides’ families, there are only 11.8% who marry at home. Certainly, it is obvious that the eldest sons usually marry at home and carry on the family line. Their marriage percentage is 30%, by comparison, the second song’s is 8.3% and the youngest 6.25%. If he is the only son, the probability about he marrying at home is more than 50%. The female choices generally balance among getting married, walking marriage and looking for visit-son-in-law, the percentages are respectively 35.3%、35.3% and 29.4%. If she is eldest daughter, the probability about she marrying and staying at husband’s home is only 20%, the walking marriage’s is 30%, and the matrilocal residence’s is more than 45%. Either matrilocal residence or walking marriage, the percentage of the youngest daughter staying is 54.6%. In addition to them, most of the other daughters often marry and live at husband’s home. As a result, Zaba Tibetan emphasize the paternal line in the depth of their heart, if their sons are incapable or indisposed, the daughters will inherit the ancestral descent. When decide their marital model, Zaba Tibetan pay more attention to family population, whether the blood lineage comes from father or mother, they pay few attention to it.
Zaba Tibetan families are huge and complex, there are more than two fertility units in one generation. In recent years, Zaba Tibetan family structure has been changing obviously, the core family is growing in number distinctly.
The value orientation of modern marriage law is welfarism, the community property embodies the equality of men and women, the system of contractual spousal property manifests the freedom, which focus on protecting the weak are the support right, the help right, the custody and the succession, all of them construct the modern marriage law. The minority ethnic groups have the right to set up their jural relations within the limits, which manifests the state respect cultural diversity. The marriage law unify the minimum mandatory stipulates, which avoids the minority’s marriage far from modern society. As a developing nodal point, Zaba Tibetan family structure modification is a typical sample about self-adaptation between state civil legislation and traditional custom.