|Date of birth||January 8, 1990|
|Place of birth||Shanghai, China|
|Height||1.81 m (5 ft 11 1⁄2 in)|
|Playing position||Fullback, Midfielder|
|2000-2005||Genbao Football Academy|
|2006||Shanghai East Asia|
|* Senior club appearances and goals counted for the domestic league only and correct as of 12 November 2014.
† Appearances (Goals).
Jiang Jiajun played for the Shanghai Shenhua youth team until he was promoted to the senior team during the 2009 football league season. He went on to make his debut on October 31, 2009 in the last game of the season against Changsha Ginde in a 2-1 victory. The following season Miroslav Blažević came in as the Head manager and he decided to move Jiang Jiajun to fullback during the season, this seemed to work as he went on to a vital member of the team that ended the campaign in third. The following season saw Xi Zhikang become the new Shenhua coach and Jiang saw significantly more time in midfield where he went on to score his first senior goal on 19 April 2011 against Sydney FC in an AFC Champions League game, which ended in a 3-2 defeat. As the season progressed and despite Shenhua bringing in another coach in Dražen Besek during the season Jiang continued to gain significant playing time off the bench and scored his first league goal on September 28, 2011 in a game against Hangzhou Greentown, which Shenhua won 3-2.
At the beginning of the 2012 Chinese Super League season Jiang had a chance to return to his hometown when he joined top-tier side Jiangsu Sainty for a reported $1.1 million on the final transfer day.
After an impressive 2010 league season for Shenhua, Jiang was called up to the Chinese U-23 football team where he was re-united with his previous manager Miroslav Blažević. Jiang made his debut in a friendly on June 3, 2011 against the North Korean U-23 team in a 2-1 defeat. He was then part of the squad that took part in the 2012 Olympic qualification process that saw China being knocked-out by the Oman U-23 team.
Last update: 12 November 2014
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- "China 2010". rsssf.com. 21 Jun 2012. Retrieved 2012-07-27.
- "AFC CHAMPIONS LEAGUE 2011 MATCH SUMMARY". the-afc.com. 19 Apr 2011. Retrieved 2012-07-27.
- "2-3 - 比赛结果-中超数据库-搜狐". csldata.sports.sohu.com. 2011-09-28. Retrieved 2012-07-27.
- "舜天官方宣布内援第四签 申花90后小将正式加盟". sports.163.com. 2012-03-04. Retrieved 2012-07-27.
- "前舜天边卫将加盟上海申鑫". sports.sina.com. 2014-02-13. Retrieved 2014-02-14.
- "FIFA OLYMPIC FOOTBALL TOURNAMENT 2012 MATCH SUMMARY". the-afc.com. 23 Jun 2011. Retrieved 2012-07-27.