|Full name||Ren Xin|
|Date of birth||May 22, 1989|
|Place of birth||Jiujiang, Jiangxi, China|
|Height||1.72 m (5 ft 7 1⁄2 in)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 12 October 2019|
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 FC 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. After pre-season of 2011 Ren Xin didn't win a contract under new manager Philippe Troussier and left the club. 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.