Siheyuan is an ancient architectural form, which is composed of buildings surrounded on all sides and has obvious China characteristics. Courtyard usually consists of two courtyards, two wings and a main building. There is only one entrance on the front of the main building, and there are no windows on the other three sides, resulting in no wall on one side of the courtyard, which is called "missing corner" This design is to let the main building get more sunshine and natural ventilation, and at the same time reduce the invasion of the north wind in winter. So there is a lack of angle in the hospital.
Through the research and innovation of courtyard architecture, modern designers not only improve the space utilization and functionality, but also try on appearance modeling and aesthetic value, which makes courtyard architecture glow with new vitality in modern society.