Abstract:The traditional Tibetan settlement of Tongtian River Basin are the research object of the article.From the natural factors and the religious factors , the pattern and spatial layout of the settlements are discussed by investigation ,Surveying , mapping in the interview and ?comparative analysis?.And the article reveals the settlement Eco-gene , which is facing the problem of the destruction, the aged and the variation. And based on the view of the ecological security ,the settlement transformation and the inheriting and handing down culture ,the urban planning and construction strategies of the traditional Tibetan settlement is proposed about the conservation and development.