Abstract: As an important traffic hub，the middle and upper reaches of Yuan River are the main path linking the eastern and southwestern regions of China in economic technology and supply transfer． Which objectively resulted in the fusion and integration of various cultures and profoundly reflected in all kinds of construction activities in this area，so as to form the particularity of the architectural culture． By summarizing the plane of the type and construction characteristics of a typical buildingYingziwuand analyzing the reasons of its formation，it was pointed out that theYingziwuis the typical regional architecture which was jointly formed by local society，economy，history and natural environment．