Cao Song, 1999, a native of Fengjie, Chongqing, studied in Tongliang Middle School and graduated from Zhejiang University. Cao Song is 2.08m tall and weighs105kg. He is a center. In high school, he was the absolute main force of Tongliang middle school men's basketball team, and led Tongliang middle school basketball team to win national and municipal championships many times. This time, he was selected into CBA, and he was also the first graduate of Tongliang Middle School to enter the professional basketball league.

As a player of Zhejiang University, he was selected by Qingdao Guo Xin Haitian Club with the seventh place in the first round, and became the first person of Tongliang Middle School to enter CBA (Chinese Men's Basketball Professional League).