Fintech has achieved rapid development. While promoting financial development, Fintech has also caused related financial risks. Therefore, the regulation of Fintech is an important topic. China has introduced different regulatory policies based on developments in different periods. At present, my country's financial technology has entered an era of strong supervision. This paper selects relevant data from 2016 to 2020, constructs a Fintech composite index and a regulatory indicator, and establishes a multiple linear regression model to explore the impact of Fintech supervision on Fintech.