After the COVID-19 in 2020, China and the world are facing major changes unseen in a century. In this context, studying the impact of Internet finance on the traditional banking industry has important theoretical and practical significance. This article first studies the current development of Internet finance, then focuses on the impact of Internet finance on traditional commercial banks, and proposes corresponding countermeasures. Draws the following conclusions: Internet finance mainly includes three modes: Internet payment, Internet financial management and Internet financing. The emergence of Internet finance has both positive and negative impacts on traditional commercial banks. In the face of negative impacts, commercial banks should change their business philosophy, strengthen their own innovation capabilities, reduce the income dependence of traditional spreads, and actively seek cooperation with Internet financial companies.