In the age of big data, blockchain technology changes the traditional development pattern and governance mode by virtue of its unique technological advantages and operational logic, which highlights the importance of blockchain and gradually becomes a hot topic of the international community. The United Kingdom, the United States and Singapore are the leading countries in the development and application of blockchain technology. They have successful practical experience of applying blockchain technology to the policy system, application logic and implementation path. Therefore, learning from the successful experience of blockchain abroad, based on China’s basic national conditions and development trend, China can promote the development and application of blockchain from such aspects as technological breakthrough, cooperative governance, risk assessment, legal construction.