Through the investigation of the Sanxuantang Hall of LIU Yong-fu s former residence, this paper analyzes on its distribution, architectural features and architectural art, and probes into the relation between the architectural style and the architectural function for the purpose of searching the connotation and the transmission of Chinese folk houses architectural culture.

On base of deep investigation to the courtyard dwellings in Shenmu area and inspection of the typical case,the paper analyzes architectural features of courtyard dwellings like plane distribution,use of space,using function and so on from the angle of architectural design,it also discusses about combining of courtyard dwellings and folk-custom culture,so as to push study on courtyard dwellings.

This paper probes into the architectural characteristics and use value of the compound library,and points out that the solid buildings of the compound library should break through the restriction of the individual and independent buildings,and should possess certain perspectiveness and adaptability in the architectural design and overall arrangement inside and outside the buildings.