Internet finance has gradually emerged as an emerging financial situation in people's daily lives with the advancement of science and technology and the development of China's economy. This paper starts from China's current monetary policy and the current development status of Internet finance in China. Then I further analyze the impact of Internet finance on monetary policy transmission. The analysis is carried out from the third direction: the liquidity of cash, the impact on the traditional banking, and the impact on the implementation of monetary policy. Finally, I give some suggestions based on my study.