"Cheng" is a Chinese character, which means rules, French style, progress, limits and so on. It can also be used as a surname.

Cheng is a descendant of Zhong and Li. There are two theories about the life experiences of Zhong and Li. Zhong and Li are both great-grandchildren of Zhuan Xu. Zhuan Xu has a son named Wei and another son named Lao Tong. Old boys has two sons, namely Li Zhonghe; Another way of saying this is that Li is the son of Zhuan Xu's great-grandson.