“Social Impact Investment”is a new toolfor social innovation，which is based ontheblended value theory，the social enterprise's triangular relationship concept and the cooperative governance theory，has the characteristics of linking business and social values and can be used to solve social problems efficiently.Its operational logic is using commercial means to assume social functions and promote social governance through the way of multi-cooperation.From literature research，combining with the realityofthe development of China's social transformation，it could be found that in the context of social problems are increasingly complex and the demand for social innovation isgrowing，social impact investment may push cooperative governance ideas and effective mutual promotion mechanism that would have a strong adaptability and inspiration in terms of social governance and social innovation.Therefore，in order to support the healthy development of social impact investment which is still in the budding period in China，it is necessary that the government uses the policy model to guide the transformation of the market thinking paradigm of our country，the multivariate subjects work together to build a good influence on investing in ecosystems and the intermediary institutions attempt to improve the embedded evaluation mechanism for evaluating social impact.Then，finally，it would help social impact investment to play the important role under the logic of China's social innovation.