While fintech promotes the integration of technology and finance，it also brings difficulties to financial regulation. To resolve the conflict between fintech risk prevention and innovation，the monetary authority of Singapore set up the fintech regulatory sandbox and the quick sandbox mechanism，aiming to make Singapore a global center of smart technology and smart financial services. The implementation of regulatory sandbox in Singapore is mainly supported by government. During the implementation of the supervision sandbox，the Singapore government is responsible for the definition of the subject of implementation，the establishment of regulatory policy objectives and the formulation of relevant supporting policies. On the basis of learning from Singapore’s sandbox mechanism，the implementation of China’s sandbox regulation should establish a logical top-level system，formulate diversified evaluation criteria and timely innovate regulatory tools. In the future，the government needs to actively transform its regulatory functions，give more opportunities for self-regulation of fintech enterprises，and commit to promoting voluntary compliance supervision of enterprises，so as to enhance China’s fintech competitiveness.