If you just want to apply for a F visa, they you need to prepare the documents below:
1. Your passport with blank pages and at least 6 months validity left before expiration.
2.A truly and completely filled application form affixed with one passport-sized photo.
3.A Visa Notification Form issued by Chinese authorized unit.
4.Round-trip air ticket
5. Hotel reservation.
6. An invitation letter from the boxing training institution.