Social impact investment fund is one of the most important subjects of social impact investment. With the rapid development of China’s economy，the rising wealth of residents and the concern of social and environmental problems，China’s social impact investment fund has sprouted adorable in China. At present，China’s social impact investment ecosystem has been preliminarily built，the social impact assessment system has been gradually improved，and the number of social impact investment funds，investment projects and investment amount are growing rapidly. However，investors’ low acceptance of social impact investment，lack of and recognition，lack of industry consensus on social impact investment evaluation tools and lack of professionals have limited the development of social impact investment funds in China. We should improve the relevant policy environment as soon as possible，accelerate the formation of consensus on social impact assessment tools，certify social impact investment managers，promote the construction of talent team，integrate multi-party resources，and accelerate the development of social impact investment funds in China.