Online finance relies on the Internet as a carrier and relies on technologies such as big data to shorten the transaction path through advanced technical means to form a typical financial innovation business.The essence of Online finance is the business change under the premise of information technology revolution.Under the new technology，through interpersonal and interpersonal relationships，we will participate in financial activities，including enterprises and individuals，to realize the essence of inclusive financial services and make better use of the market value of Online finance.Of course，this also virtually changed the pattern of the government's financial supervision in the past，bringing new challenges to financial regulation.

Online finance is based on the new means of information technology on the traditional business innovation，and the regulation of Online finance can't stay in the traditional ways and means.In the new era，it is of vital importance to use the technology of big data to monitor and supervise the Online finance industry，to achieve a high-quality and efficient regulatory strategy，to safeguard the interests of investors to the greatest extent and to ensure the normal operation of the market.This article is mainly from the Internet financial data monitoring and analysis as well as the Internet financial public opinion monitoring point of view，on the big data technology in the Internet financial regulatory means and methods for a preliminary study.