In China, institutional investors mainly include commercial banks, insurance companies, insurance asset management companies, Public Offering of Fund companies, securities companies, asset management subsidiaries of securities companies, private equity fund companies and national social security funds. According to relevant information, institutional investors mainly include securities companies, commercial banks, insurance companies, social security funds, securities investment funds, trust and investment companies, enterprises and institutions as legal persons and social organizations. In China, institutional investors are mainly qualified to engage in securities proprietary business at present.