Abstract: The western mountainous area is an important ecological belt to Beijing City. The populations in this area and economic models existing are directing factors to influence and damage mountain landscape, ecology and environment. But with historical relations to Hebei Province and others regions, this area is a special belt of Beijing ancient culture system. One of the culture types is traditional villages. Many traditional villages have been reserved in the western area of Beijing especially in Mentougou District with local characteristics and historical cultural heritages. The traditional villages are the important and special landscape and tourism resources now. Based on the systematical investigations and combined with the longevity, integrality, locality, coordination and typicality, this paper calculated evaluation index( ) by which evaluated the traditional villages and divided the traditional villages into three levels which are heritages villages(E_tvⁱ∈(4,6]), special villages (E_tvⁱ∈(1,4])and preserved villages(E_tvⁱ∈(6,9]). According to this, the mechanisms of sustainable development must insist on conserving and exploitations with different levels and different types, substituting living there with visiting and tourism, and discovered and experienced the landscape cognation rhythm of traditional villages. Based on the mechanism research of traditional villages sustainable development, we do more discussions on six sustainable development models of traditional villages which are folkways and rural museum, natural and cultural villages and tourism center, human and eco-system practice and education base, recreational belt and leisure town, and entertainment manor and time-share vocation base and rural sybject tourism development.