[1] He won a gold medal at the 2016 BWF World Junior Championships in the mixed team event.

He started playing badminton at the age of 9 and entered the Dongguan Sports School, where he received scholarship from Tang Xianhu.

[2] In 2016, Lei competed in the BWF World Junior Championships mixed team event and was selected to play against the Armenian team in the group stage.

[5] In 2022, he competed in the Asian Championships and qualified for the first round of the main draw, but lost to Kanta Tsuneyama in three games.

[8] The BWF World Tour, which was announced on 19 March 2017 and implemented in 2018,[9] is a series of elite badminton tournaments sanctioned by the Badminton World Federation (BWF).