This article selects the 2020 part of the larger，high power，large marathon event sponsor are analyzed and compared，including the C&D Xiamen marathon，Chongqing Changan automobile marathon，Guangzhou Honda Hangzhou marathon，Nanjing bank marathon and Galaxy macau international marathon five events. Calculated before and after a certain period of the sponsor，stock index and comparative analysis，found in the car companies during the period of sponsorship effect is better，with the sponsor’s current to a dynamic market environment have also have a certain relationship，and sponsoring a marathon event in this time period is definitely a very right choice，For C&D group and galaxy group and its share price index in the sponsorship period showed a certain trend，suggesting that produced certain effect of sponsorship，and Nanjing bank performance is relatively stable，this for financial industry enterprise is not necessarily a bad thing，the marathon event sponsorship can bring Nanjing bank more extensive mass base and favorable market environment，Beneficial to later development.