当今著作权国际保护的法源一般是由国内法、双边条约、多边公约构成的。①其中，在对外国人的著作利益保护方面，国民待遇原则起到了十分重要的作用。本文试图从制度构造、理论结构两个层面就著作权主要公约中的国民待遇问题展开论述，以期对此能有一个较完整、深入的认识，并 The current source of international protection of copyright is generally constituted by domestic laws, bilateral treaties and multilateral conventions. Among them, the principle of national treatment plays an important role in the protection of the interests of foreigners’ writings. This article attempts to discuss the issue of national treatment in the main conventions of copyright from two aspects: institutional structure and theoretical structure, in order to have a more complete and in-depth understanding of it