When people mention the city of Beijing, they will naturally think of the courtyard houses in old Beijing. This is because the courtyard house has an authentic Beijing flavor, displays the traditional folk customs of old Beijingers, and has strong local characteristics. Siheyuan has a long history in China. According to the analysis of existing cultural relics, buildings in the form of Siheyuan appeared as early as more than 2,000 years ago. However, large-scale construction began in Beijing during the Yuan Dynasty. It was gradually improved and developed to its peak during the Ming and Qing Dynasties. Most of the Siheyuan that can be seen in Beijing now are leftover from that time. There are many forms of Siheyuan. The standard Siheyuan has three entrances. In the construction of Siheyuan, special attention is paid to the layout and Feng Shui of the courtyard. It is worth mentioning its decorative art and preserved artistic treasures. As the main architectural form where old Beijingers have lived for generations, the Beijing courtyard house is famous overseas and is well known to the world.