She competed at the 2004 and 2008 Olympic Games. She also won the silver medals in the 10,000 metres at the 2002 Asian Championships and the half marathon at the 2003 Summer Universiade, as well as the bronze medal in the 10,000 metres at the 2007 Summer Universiade. She finished fourth at the 2006 Asian Games and won the 2006 Pyongyang Marathon.