There is an important link with energy structure and low-carbon development of sport economy. In this paper, we take the connotation and characteristics of sport economy low-carbon development as the starting point, for the in-depth analysis of the relationship between energy structure and sports economy development, we find that there is a certain contradiction in the current structure of China's energy production, consumption as well as cost structure and the way of sport economy low-carbon development. This contradiction is mainly reflected in the current energy mix pollution as well as low efficiency and high green energy costs, resulting in its propulsion difficulties, which are contradicting low-carbon characteristics. For this reason, we believe that we should improve energy usage to reduce pollution on the one hand, and promote sports economic activity in green way and activity without energy or with low-energy consumption. In the meanwhile, we should keep innovating new method to reduce production costs and improve the output of green energy resource.