Abstract:China is at the historic intersection of a century of change and a new round of scientific and technological revolution, facing intricate internal and external environments, and in urgent need of forming and developing new quality productivity. FinTech is a key link in deepening the structural reform of the financial supply side and building a modern financial system, as well as an important engine for boosting the development of regional new-quality productivity, and it has injected great impetus into realizing high-quality development of the economy. Therefore, it is of great practical significance to examine the impact of FinTech on regional new quality productivity.? Take 30 provinces (cities) in China from 2012 to 2022 as research samples, explores the impact of fintech level on regional new quality productivity, finds and tests the moderating effect of financial regulation, and obtains the following conclusions. First, FinTech can empower the development of regional new-quality productivity, and the conclusion still holds after a series of robustness tests such as replacing the explanatory variables, changing the sample time span and alleviating the endogeneity problem. Secondly, this paper analyzes the heterogeneity from three perspectives: regional differences, differences in the level of private finance and differences in the level of regional finance: firstly, the level of FinTech significantly promotes the development of new-quality productivity in both the eastern region and the central and western regions, but the promotion effect is more prominent in the central and western regions; secondly, FinTech promotes the new-quality productivity more in the regions where the level of private finance is lower; and lastly. Finally, FinTech reaches a certain level before it has a promotional effect on regional new quality productivity. Thirdly, the empirical analysis of financial regulation as a moderating variable reveals that financial regulation positively moderates the relationship between the level of FinTech and the level of regional new quality productivity. Fourth, further research finds that there is a nonlinear relationship between the driving effect of FinTech level on new quality productivity, and its driving effect is constrained by the level of financial regulation. The findings provide empirical evidence to promote the development of FinTech, strengthen financial regulation and government governance capacity, and improve the level of regional new quality productivity.