 He became professional in 2001 following his strong runs to the finals of the Asian and Chinese Championships.His first Main Tour stints were rather unsuccessful, with the best result a last 48 appearance at the 2004 Grand Prix.Jin has managed to regain a Main Tour place by winning the 2008 Asian Championship, beating Aditya Mehta 7–3 in the final, having had spells on the tour on three previous occasions.