Under the influence of knowledge economy and the emerging of cultural and creative industries, museums can’t avoid to put great emphasis on industrialization, art image licensing and digital archives. Accordingly, revenues of the copyrights of museums’ digital archives and their value-added products become important and healthy profit for them to run smoothly. This thesis is to analyze from the viewpoint of the law which deals with : (a) the validity of the licensing of digital archives images by National Palace Museum, and (b) whether the Museum owns the right of claim for the premium according to “NPM Image Authorization Information Management and Fees Standards”. In general, it is highly arguable whether the “genuineness” created from digital archives is same to “the original” as stated in the Copyright Act. Therefore, the authorized party is supposed to find out first the effects of the contract they are going to sign. It is found that the “NPM Image Authorization Information Management and Fees Standards” is just an administrative rule for the purpose of regulating the internal order and for operating the authority, with no direct external effects as legal norms. Namely, the license fee is paid agreeably according to a contract signed by both sides, which is nothing to do with the legal right of a positive claim.