The geographical information reflected in a traditional genealogy mainly has two aspects. On the one hand, it is the administrative division, human geography, and other general environmental conditions of the ethnic group. On the other hand, it points to the specific origin and migration of family members in the family tree. In addition to affecting the formation and evolution of language, these factors will also affect the development trend of language behavior by promoting the psychology of people's geographic identity. From these data, we find that geographic factors in the genealogy have a non-negligible relationship with the geographical spread of the language of the genealogy.