Abstract:As for the generation, evolution, types and uses of archway(Pai Lou), architects have made detailed researches and written descriptions of the proportion, scale and key points of archway construction. Mr. Liu Dun-zhen's work "Archway" is an important technical classic on the construction of ancient archway. This paper based on the surveying and mapping data of "Fuyan Jinsha" archway of Yonghe Temple, the structural characteristics and technical treatment of the archway are analyzed and studied.