In order to suppress the Yuan Dynasty, the Forbidden City in the Ming Dynasty piled soil on Yanchun Pavilion in the Yuan Palace, forming Jingshan Park (now Jingshan Park). The mountain is the commanding height of the whole city, just on the central axis of the city. The Forbidden City built a moat, forming a pattern surrounded by golden water. Artificially created a feng shui pattern surrounded by mountains and rivers for the Forbidden City.

As far as astrology is concerned, Beijing is in the northeast, which is the projection of the Big Dipper on the earth. The Big Dipper is the center of the sky, and Beijing is naturally the center of the world, so the Forbidden City plans its palaces strictly according to the central axis. Among them, the Fengtian Hall (now the Hall of Supreme Harmony) is in the middle, higher than other palaces, and it is the place where the Emperor holds grand ceremonies and accepts congratulations. Gaihua Hall (now Zhonghe Hall), Shenshen Hall (now Baohe Hall) and Hou Jing Palace, Gan Qing Palace, Jiaotai Palace and Kunning Palace are all on the central axis. Other palaces in the Forbidden City are symmetrically arranged from left to right: the inner court is outside, the Wenhua Hall is on the left and the Wuying Hall is on the right; Followed by the bedroom, the main palace (that is, the uterine palace) is located in the east, and the harem is located in the west.