Abstract: The computer-mediated communication came along with the rapid development of information technology.The theoretical basis of restricting it is the theory of restriction on copyright.The restriction on the right of CMC should follow such principles as the principle of balance and unity between quality and efficiency,the principle of modernization,the principle of combining internationalization with localization,the principle of good faith,the principle of public order and good conversation.Its key part is the construction of “fair use” regulation.

Key words: the right of computer-mediated communication, restriction, principle, fair use