The sponsorship levels of domestic marathons can be roughly divided into four：title sponsors，partners，event sponsors，and event suppliers. Marathon sponsorship market in China has the following characteristics：first，segmented events are more and more favored by sponsors；second，auto companies are still the main force in the marathon sponsorship market；third，marathon events with a long history are often easier to get sponsorship from sponsors. The marathon sponsorship market shows the following development trends：enterprises from economically developed regions will continue to account for a larger proportion among sponsors and be more closely integrated with events，also marathon sponsors will gradually become localized. Looking forward to 2021，China’s marathon sponsorship market still has great potential to be tapped. For more mature marathon events，the sponsorship effect of increased investment is not very good，while for emerging marathon events，sponsors will have a better sponsorship effect if they sponsor them. There is a difference between perception of event sponsors and the actual sponsorship status in potential customers. Therefore，perfecting sponsorship measures to obtain the best sponsorship effect is an issue that event organizers and sponsors need to pay attention to.