He was the favorite for winning the gold medal in the 2008 Olympic Games, however, Wang suffered ribcage fracture when Brazil's Leandro Guilheiro hit him with an elbow in the quarterfinal.

Despite fighting through injury, Wang was beaten in the final by Elnur Mammadli from Azerbaijan and had to settle for silver medal.

He made up for it in the 2009 World Judo Championships by winning the 73 kg final against North Korean Kim Chol-Su.

After winning the 2010 Paris Grand Slam he did not compete until the 2010 World Championships Tokyo and lost to Hiroyuki Akimoto in the semi-finals and had to settle with the bronze.

[3] Wang was in controversy again in 2014, when he was detained for eight days by the Republic of Korea Army's military police for using his mobile phone while serving his national service.