The spirit of contract of the main body of sports market is a kind of convention and spirit of solidarity shared by all participants in the field. It includes a contract of sports value pointing to"strong body"and"spirit of pleasure". It incorporates a contract of sports spirit with freedom,struggle,competition and equality as the main content and a contract of "fair competition"with"good faith competition"and specific sports rules as the main content of sports rules contract. However,the commercialization of sports,the driving of group...