Abstract: As an important part of the subject of sports legal relationship, there are no separate provision of athlete, and no specific provision of athlete's right and duty in sports law.Provisions involved in athlete are those referring to the fundamental rights of citizens in the constitution and other department law.However, underage athlete has no citizen's right.He or she is a special laborer and the guardianship of underage athlete has not been prescribed in the system of civil law.Especially, as the complexity of athlete competing in races, a list of civil rights, such as, the guardianship, the right of agency, the right of custody, etc.can not be exercised effectively.On this occasion, special protection should be given to athlete by law.Actually, a series of lawsuits initiated by disputes of the custody of property between athletes and coaches have been brought into courts.Most of them are closed through mediations.Thus, legislations in this area need an urgent improvement.This paper aims to discuss legal difficulties caused by these problems, and in addition, to pave the way for the modifications of sports law.