It has increasingly become a common focus for the FinTech industry and regulatory authorities to strengthen the application of regulatory technology，actively use technologies such as big data，artificial intelligence and cloud computing to enrich the means of financial regulation，and improve the capacity of identifying，preventing and dissolving cross-industry and cross-market financial risks. In order to portray a true picture of big data to prevent and control financial risks in China，the report，based on official data and data released by authoritative agencies，conducts an evaluation to the current status quo of big data-based financial risk prevention and control in different provinces regions and cities in 2019，by establishing an evaluation system of the big data index of financial risk prevention and control，in a bid to provide reference for financial risk prevention and control at different regions.