As early as 20 12, China began to use the RMB cross-border payment system (CIPS), but at present, both volume and overseas payment have to go through SWIFT, which is mainly limited by the economic influence of China and the proportion of RMB in international settlement. However, CIPS is only a transitional tool and will never replace SWIFT. In the future, digital currency's cross-border settlement and payment system will be a nuclear substitute, and digital currency can give full play to its advantages of decentralization and trust and become a natural tool for international settlement and payment. SWIFT is a product based on traditional currency settlement. With the development of modern communication technology, blockchain technology, 5G technology, artificial intelligence technology and Internet of Things technology, SWIFT has fallen behind, which is a logic with traditional fuel vehicle technology. With the development of new energy vehicle technology, it will eventually be surpassed by new technologies and ruthlessly replaced.