Xiuhaibian, written by Wang Peng in 1764, is probably the earliest and the most detailed historical literature about Tangguan. It had high reference value about the changes of architectures and policies of Tangguan at that time. As a result, it became an indispensable material while understanding Tangguan in 18 centuries. This study has a deliberate discussion on the functions and changes of Tangguans's architectures, including the Dojin dou, (土神堂, the Hall of the Village Deity), Tengo dou (天后堂 the Hall of the diva), and Kannon dou (觀音堂, the Hall of the Guanyin). This study also focuses on the prostitute, who can enter Tangguan freely, including their development, clothing and escort.