Xing Yu started his professional football career in July 2014 when he was promoted to China League One side Chengdu Blades's first team squad.
[1] He moved to Chinese Super League side Guangzhou R&F in 2015 after Chengdu's dissolution.
In August 2016, he was loaned to Hong Kong Premier League side R&F, which was the satellite team of Guangzhou R&F.
[2] He made his senior debut on 24 September 2016 in a 2–0 away defeat against BC Glory Sky.
[3] He shared the starting position with Long Wenhao, playing 12 matches for R&F in the 2016–17 season.