Based on the study of the current situation of digital copyright protection in music digital library, this paper analyzes the problems and difficulties of digital copyright protection in music digital library, such as the serious phenomenon of repeated construction of music digital resources, the nonuniform protection standards of database originality, and the easy infringement of network link downloading digital resources, it also puts forward several measures to strengthen the digital copyright protection of music digital library: strengthening the implementation of relevant laws and regulations on digital copyright protection of music library, using blockchain technology to strengthen the digital copyright protection of music digital library, improving the digital copyright protection literacy of music digital library librarians, using new media technology to strengthen user education, etc.