Zijin Mountain was called Jinling Mountain in ancient times. During the Warring States Period, the State of Chu built Jinling City here, hence the name. The Han Dynasty was called Zhongshan. Rising from the ground, it looks like a coiled dragon, which is called "Zhongfu Dragon Plate". At the end of the Han Dynasty, Jiang was the commander-in-chief of Moling and died here. Later, Sun Quan named the mountain Shan Jiang.

During the Three Kingdoms period, Zhuge Liang came to Jiangdong to prepare an alliance with Sun Quan of Soochow to resist Cao Cao's 800,000 troops. When passing through Ling Lin (now Nanjing), I saw the Yangtze River in the north and the Purple Mountain towering like a dragon waving. The rocky mountain terrain is dangerous and solid, like a tiger on the river. I can't help sighing: "Long Ping in Zhongshan is sitting on a tiger. It is really the emperor's house. " And urged Sun Quan to build his capital here. After Battle of Red Cliffs, Sun Quan moved the capital to Nanjing and changed Ling Lin to Jianye. Since then, Nanjing has been the capital of the Eastern Jin Dynasty, the Southern Song Dynasty, the Qi Dynasty, the Liang Dynasty and the Chen Dynasty, so it is called "the ancient capital of the Six Dynasties".