Simply put, in the past, the training mode of tennis in China was national training, that is, the state arranged everything, including training, diet, venues, rackets, accommodation and so on. The state does everything at no cost. However, solo flight is the career path of tennis, that is to say, all the above are self-funded, self-determined, and the state does not interfere, but after solo flight, players have to pay 8%-6,544 bonuses.