Although China was a participant in the 2010 and 2014 Quidditch World Cup tournaments, no Quidditch or other wizard sports teams are listed in its Wikipedia entry (Wikipedia).
From the Web
Writing by J.K. Rowling on Pottermore:
Pottermore enhanced reading experience: Quidditch World Cup
Screenshots of the original Daily Prophet coverage of the 2014 Quidditch World Cup on Pottermore: Imgur web archive
Harry Potter Wiki: Chinese National Quidditch Team