The speeding up of the transformation of the economic development mode requires not only a leading role given to science and technology but also promoting financial innovation. With the continuous improvement of the financial support system for innovation and the deepening development of finance, the functions of the modern financial system have been continuously and its ability to support independent innovation have been continuously strengthened and enhanced. This chapter analyzes the roles and objectives of one that supports this independent innovation based on a further understanding and definition of the functions of the modern financial system. Growth Enterprise Market and the multi-level capital market are not only an important channel for enterprises to raise funds through public offering of shares, but are also key for venture capital, as this directly determines whether venture capital can benefit from it and how to realize the continuous circulation of it.