Abstract: This study used the methods of comparison and literature review to analyze the interactions among economics, summer and winter Olympic Games.The results show that the good interaction between economy and Olympics is the key to guarantee a healthy and harmonious development of Olympic Games.There is a more comprehensive interaction between summer Olympic games and economy, as well as a deeper impact on each other in terms of scale needs.Although with similarities in economic interaction modes, winter Olympics, however, has a deeper interaction in ice-and-snow industry, and a close relation to the industry distribution in host cities.