This research with a descriptive and analytical method, investigated that whetherall sexual crimes that is possible in the real world is also realizable in virtual andcyber world. The occurrence of some sexual crime with the rise of the Internet hasbeen transferred from physical environment to virtual environment; however insome of them the computer and the Internet cannot be considered as a criminaloffense, such as adultery, homosexuality, because the occurrence of such crimesrequires physical presence. This article concludes that in terms of penal policy inIran, just pornography is the cases which stipulated in the law that the article 640of Islamic Penal Act article has expressed traditional pornography and in article 14of computer crime law has defined pornography and its instances throughcomputers and Also in paragraph (a )of article 15 of the Computer Crime Act, thosewho incite others to access pornographic content and etc, are punishable And inpart of the same article( paragraph b) ,those who incite and encourage others toimmoral and sexual crimes ,although is as a deputy, but being considered as anindependent crime and are also punishable. In other cases of realizable sexualoffences in cyberspace we face with legal Silence and when it is not spoken aboutSteward and not criminalized and the assignment of such crimes as regards theSteward has not been identified, the assignment of partners and their assistants isunclear