Liu's success began at Athens 2004, when he won gold in the men's 110m hurdles. This scene is not only a breakthrough in Chinese men's track and field, but also a milestone in the history of Asian track and field. Subsequently, he continued his efforts and broke the world record in the 2006 Lausanne Super Grand Prix in Switzerland with an astonishing 12.88 seconds, once again pushing the "Chinese speed" to the world. Although he has faded out of competition in recent years due to injuries and other reasons, he has set a benchmark for Chinese athletics and even Asian sports.