摘要：With the rapid development of financial technology, it has brought new impetus to commercial banks and accelerated the transformation of traditional commercial banks, but it has also brought new challenges to the traditional business model of commercial banks. The favorable effect is that commercial banks can improve efficiency by optimizing traditional business models through fintech. The negative impact is that the development of fintech will crowd out the original market share. Therefore, when commercial banks face financial technology, how to deal with the impact, how to use financial technology to change the original business model, improve profitability, and achieve bank transformation is very important.Based on relevant theoretical studies, this paper analyzes the impact mechanism of fintech on commercial banks from the two aspects of crowding-out effect and technology spillover effect. Data from 5 state-owned banks, 9 joint-stock banks and 14 urban commercial banks from 2012 to 2021 are selected, and performance indicators of commercial banks are synthesized by factor analysis, and then
regression is carried out by fixed-effect model The impact of financial technology development on commercial banks is analyzed. Finally, the robustness test of the alternative variables is carried out and some suggestions are put forward to improve the performance of commercial banks.