Located in Jinxing West Road, Daxing District, Beijing. The planning concept of "the sky is round, the place is round, and the nine palaces are located": a circular ring road is arranged in the middle of the square land, and a square building is arranged in the middle of the ring road. The circular road network belongs to "Yang", which produces movement and change, cycle and endless; Square plots and square buildings are "Yin", static and stable, symbolizing ease and peace. The combination of yin and Yang complement each other. The building area is divided into Jiupin square grid, and the functional layout is carried out according to the orientation of traditional Feng Shui, forming a stable "pin" shape relationship among buildings, squares and courtyards.