In recent years，with the popularity of marathons，more and more people have participated in marathons. China’s marathon operation mode has gradually shifted from government-led to market-led. More companies have discovered the hotspot of marathon events，expanding social influence and attracting customers by sponsoring marathon events. In this process，the relevant government departments of the country promulgated a series of documents and policies to provide more convenient conditions for the development of urban marathons. It is expected that marathons will play an increasingly important role in the national fitness in the future. The industrial chain and evaluation system can be more perfect，so that the marathon can develop healthily. With the cancellation of the right to approve sports events in 2015，the number of marathon events has exploded. Faced with this new trend of marathon events，the article makes a sociological analysis of the Chinese marathon sponsorship market. The study finds that marathon sponsorships are mainly concentrated in the real estate，automobile，insurance，sports brands，food brands，tourism and medical and pharmaceutical industries，and marathon directly related industries.