The laggard status of rural human settlement environment of mountain region in Yunnan Province affected the balanced development between city and countryside, so accelerating its construction is the urgent need of rural development. In this paper, the characteristics and realistic influence of traditional pattern of rural human settlement environment construction in Yunnan mountain region are expounded. Moreover, it puts forward the construction pattern, which depends on the development of small towns by analyzing the connection among natural environment characteristics, society and economy innovation and the pattern of human settlement environment construction. At last, several advices are brought forward for the actual action of rural human settlement environment construction in future.