Why does Guoan play against amateur teams?

Football association events. Beijing guoan football club was founded on February 29th, 1992, 1992. It is the earliest professional football club in Chinese mainland. It took part in the Football Association competition and was drawn by lot. A team from an amateur league, whose name most people have never heard of, beat the top professional league players. Although it is not uncommon in the world football, it is relatively rare in China.