Under the influence of Li Aihua, a badminton coach, Zhu Lin started playing at the age of 8. 1998 joined the Shanghai Sports Team, joined the National Second Team in 2002 and joined the National First Team in 2004. She is a leading figure in women's singles badminton in China. She broke out in 2007 and won the Malaysian Super Championship. At the World Championships, she won the championship in one fell swoop, becoming a new world champion and also a world champion, while her senior sisters Xie and Zhang Ning were out one after another.