The metaverse is a new social form of virtual and real integration generated by the integration of a variety of new technologies, and the NFT digital collection is a network virtual product formed by the application of blockchain technology in the context of the metaverse. In recent years, NFT digital collections have gradually become a new form of metaverse digital economy development and become increasingly prosperous, which is accompanied by risk prevention and legal regulations. At present, the research on the metaverse and NFT digital collections is still in the initial stage, and it is easy to produce great disputes when it is regulated by law. Starting from the relationship between the metaverse and the NFT digital collection, this paper analyzes the legal attributes of the NFT digital collection, and puts forward suggestions on the endogenous risks and legal regulations of the metaverse and NFT digital collection, hoping to give full play to the characteristics and advantages of the NFT digital collection and promote the rapid development of the metaverse digital economy.