Career
On 13 January 2012, Albirex Niigata announced the signings of both Kim Jin-su and his compatriot Kim Young-keun. Furthermore, he scored first professional goal in the same match, with a long range strike. He made his competitive debut in a J. League match against Kawasaki Frontale on 10 March 2012, playing the full 90 minutes.
On his birthday in 2014, TSG 1899 Hoffenheim announced the signing of Kim Jin-su.
Kim has represented South of Korea at many youth levels. He had participated in the 2009 Fédération internationale de football association U-17 World Cup and the 2011 Fédération internationale de football association U-20 World Cup.
On 20 July 2013, Kim made his debut for the South of Korea senior team against Australia in a 0–0 draw.