This article discusses new standards in the semi-fungible token field, such as ERC-404, TinySPL, and Asteroids, and their role in promoting new models of digital economy and asset forms. The article evaluates the performance of these standards in enhancing asset interoperability, binding assets with identities, scalability, cost efficiency, and simplifying user experience. At the same time, it points out the challenges faced by ERC-404 tokens, including lack of formal review, security risks, and market acceptance issues.