She is a three-time World Championship middleweight silver medalist.

Lee did not qualify for the 2008 Olympics losing to Hwang Kyung-Seon, who eventually won the Olympic gold medal in the women's under 67 kg division in Beijing, in the South Korean National Trials.

[citation needed] As a middleweight (under 73 kg), Lee clinched her slot in the women's over 67 kg division 2012 Olympic South Korean National Trials where she beat 2011 World Championship runner-up An Sae-Bom and 2007 World Championship runner-up Park Hye-Mi.

At the Olympics, she lost in her bronze medal bout to Anastasia Baryshnikova.

This biographical article related to South Korean taekwondo is a stub.