In the development history of each nations in Vietnam, the influence of village elders, lineages heads and village heads is not only in a family, a family but also spread strongly to both communities and society. They have a particularly important role in the local social life, which is the support of the authorities at all levels in mobilizing people to implement the Party's policies, policies and laws of the State in economic development, new rural construction in mountainous areas of Bac Kan province.