In 2016, Xu won for the fourth time the world Championships in the team event. At the Olympic Games he didn't play in the singles but won with the team gold. At the World Cup he lost in the final to Fan Zhendong. In 2017, at the World Championships he came to the semifinals and won gold in the doubles category. At the China Open 2017 he boycotted his Round-of-16-match, because the coach was supendend. In 2018 Xu Xin won with the team gold at the World Championships.