Lü won a match as a professional at the first attempt by beating Dominic Dale 5–2 to qualify for the 2014 Wuxi Classic, where he lost 5–2 to Jack Lisowski. He could not win another match in a qualifying event during the rest of the season. He played in his first UK Championship as all tour players start at the venue stage of this event, but was defeated 6–1 by Ryan Day in the first round. Lü was the world number 113 after his first season on tour.