Compared with traditional investment, risk investment has big differences in investment objective, method and retrieval. The research into the influence of various financial treatment behaviors on financial treatment efficiency can pointedly guide company to improve treatment measures and increase treatment efficiency. GEM is China's national listed company board which has the widest risk investment participation. The paper takes IPO companies from 2009 to 2013 as research objects and studies the influence degree and method of risk investment in GEM on financial treatment efficiency of listed companies. The research shows that if shareholding ratio of risk investment is higher, the participation time is longer, seats in board of directors and board of supervisors are more and the financial treatment efficiency is higher, but the united investment in GEM has the free-rider phenomenon. Therefore, listed companies should work hard to perfect and adjust relevant system and treatment structure and risk investment organizations should strengthen cooperation in order to improve financial treatment efficiency of various risk investment parties.