With constantly advancement of society, people increasingly focus on their health problems. City spontaneous sports organization as a sport industry, it has rapidly developed in current society, people have already recognized importance of developing low carbon economy, and it has become one of people sports exercises important forms. Therefore, city spontaneous sports organization development research is a problem that worth us considering at present. The paper starts from city spontaneous sports organization development influential numerous factors, selects city support factor, sports organization construction factor, field construction as relative main factors, establishes city spontaneous sports organization-based correlation degree model, by comparing the three correlation degrees sizes, finds out city spontaneous sports organization development influential main factors. The conclusion is: Government support factor correlation degree value is the largest that is upmost influence factor, secondly is sports organization construction factor, field construction factor.