The application of the "regulatory sandbox" model in China's financial technology innovation supervision pilot has achieved positive results, with 83 "box" financial technology innovation projects benefiting people and enterprises landing, releasing market vitality, and enhancing the ability of financial services to the real economy. However, with the expansion of the pilot project "from point to surface", the article takes the "regulatory sandbox" model pioneered by the UK as an example to analyse the operational mode and significance of the "regulatory sandbox” and believes that incorporating financial technology innovation into the regulatory sandbox for regulation is an effective technical approach to solve the problems of financial technology, including internet finance regulation in China. On this basis, corresponding policy recommendations were proposed from the perspectives of financial technology regulatory strategy, regulatory logic, and regulatory information sharing mechanism.