Abstract:The bracket set is a unique component of traditional Chinese architecture. With the development of Chinese architecture in past dynasties, the kinds of bracket set increased and there are regional differences. At the same time, it also affects the development of architecture in a certain region, such as Oblique bracket set. Through the investigation of traditional architecture in Henan, Hebei, Shanxi and Shaanxi, we have a new understanding of the types, origin and function of Oblique bracket set.