Liu first represented China as a wheelchair racer at the 2010 Asian Para Games in Guangzhou, winning an individual gold in the 400m (T54) and a team gold with the men's 4 × 400 m relay (T53/54). The next year he competed at the 2011 IPC Athletics World Championships in Christchurch, New Zealand. In Christchurch he took two more gold medals, again in the 400m sprint and the men's 4 × 400 m (T53/54).
