Abstract:Deshengmen is located on the west side of north wall in the inner city of Beijing in the Ming and Qing Dynasties. Its archery building is one of the two archery buildings preserved in the nine gates of the inner city, it has high historical value and research significance in terms of building shape and structure. This article combined with "Gongcheng Zuofɑ"Volume 16 to introduce the structure and characteristics of Deshengmen Arrow Tower in detail, and strives to further reveal the characteristics of urban defensive buildings and related construction systems in the Ming and Qing Dynasties.