 Since his international debut at the 2006 World Artistic Gymnastics Championships, he was almost unbeatable on his specialist event, still rings, except to his teammate Yan Mingyong in 2009 and the Brazilian Arthur Nabarrete Zanetti at the 2012 Summer Olympics.He became the 2006, 2007, 2010 and 2011 world champions on still rings.Chinese gymnastics head coach Huang Yubin questioned Chen's position at the 2012 Summer Olympics, He was quoted as saying that "because of the ugly behaviors of the judges, it has hurt Chinese Gymnast, as well as being a humiliation to this event."