With the development of the Internet, the quantitative investment market is expanding. At present, many developed countries have built a complete quantitative investment system, but due to the late start of China's financial market, the quantitative investment system still has more improvements to be made. Through the study of relevant literature and the analysis of the current market situation, this paper briefly describes the trading strategy of quantitative investment, the current status of quantitative investment in China and the possible risks: data risk, systemic failure risk and market risk, and puts forward risk control suggestions: follow the three regulatory principles of fair trade, qualitative regulation and classification regulation; clarify the regulatory process; improve the risk management defense line; improve the technical analysis system; standardize the quantitative investment process and investment manager behavior principles.