Career
Ren Xin started his professional football career at Shenzhen Ruby F.C. during the 2009 Chinese Super League season after graduating from the club"s youth team and would make his debut in a league game against Guangzhou Football Club on March 28, 2009 in a 2–1 defeat. By the end of his debut season with the club he made nineteen league appearances and was on his way to establish himself as regular within the squad. In season 2010 Ren Xin dropped in pecking order in the competition with newly joining players and seniors.
In January 2012 Ren Xin joined Shenzhen Fengpeng but only got back into competitive matches in later stage after struggling with injury for the most time of season.