Because of its intangible characteristics, the information of NFT digital works in the form of binary digital code has impacted the traditional standards of “carrier of works” and “copy of works” in the copyright law, which affects the determination of the nature of the trading behavior of NFT digital works. From the viewpoint of technical design and operation principle, NFT is the certificate of rights and interests of NFT digital works, and NFT digital works should belong to the category of virtual property, and its transaction involves casting, publishing, selling, etc. Based on the attributes of the virtual property of NFT digital works and the nonreplicability of NFT itself, from the perspective of more conducive to the protection of the rights, the transaction of NFT digital works should be characterized as the issuance of the act.