There are two ways: First, China players must be qualified to participate in the NBA draft before the age of 22. You must be at least 18 years old before the draft, and you must send a written notice to the NBA 45 days in advance to get the will to participate in the draft.
Then there are China players, if they played for the American college basketball team in the season before winning the draft. He can only choose to continue to finish his studies or give up a course in the university. This is necessary. This is just a written regulation, and there are some hard requirements. Basketball players, for example, should at least have a wonderful performance beyond the average person in the past regular games. Only in this way can they stand out from many NBA debut applications.
Second, a team will sign a contract with you directly, but you must have a personal level to meet NBA standards, an unusual physique, a good attitude and a different way of doing things. It also has a certain reputation in the world, and the team is willing to use the huge market to do business promotion for you and me.
Like Yao Ming and qi zhou, they belong to the first category. They have excellent physique and advantages. It is because of their unusual physique, quality and skills that they can stand out from many draft athletes in the rookie season.