Abstract: The further growth of sports industry is limited by supply side problems, such as minor industry scale and unreasonable structure and product undersupply etc.With the analysis of the era value and the connotation of high quality development, it is staled that some dilemmas restrict the steady progress of supply side reform of sports industry.The dilemmas include the coexistences of imbalanced and insufficient development, the incomplete supporting policy and working system, the insufficient effective supply and effective demand, as well as the weak vitality of market main body and low efficiency of market-oriented allocation etc.The internal logic of the supply-side reform of the sports industry needs to be built from the four levels of government, market, society and industry.Hence the supply side reform path of sports industry is put forward, which takes enhancing the input of production factors, cultivating the dominant position of sports market, solving the structural contradictions of sports industry, and improving the sports industry system.