An electronic audio-visual product copyright management method through the verification of embedded dynamic information is characterized by comprising the following steps: defining file dynamic feature information and user trading feature information, adopting a specific file organization structure, stipulating the storage of the user trading feature information and the file dynamic feature information, and meanwhile, providing a function of previewing an electronic audio-visual product; designing special user equipment and a copyright management server; designing an electronic audio-visual product copyright management formwork with a two-stage verification structure on the basis of the user equipment and the copyright server to carry out copyright verification management; providing a method for embedding and extracting dynamic information in an unencrypted preview file; verifying the dynamic information by the copyright management server, and realizing the dynamic tracking and tracing of the file; unifying the electronic audio-visual product purchased by the user. The method can realize leasing and borrowing functions.