The INTERNET, due to its global scope, easy access, cheapness and possibility in global communication, is the endless world, and has important role in developing and/or destructing countries. If it is used to make peace, economic security and positive communication, then it will be considered as proper technology for the countries; however, if it is used to violate privacy, intellectual ownership rights, insult, defamation and software malfunctions, it will affect inversely. Toutilize this new world, it is necessary to create an integrated system including controlled rules with related needs. In this paper, the accepted models of legal society are studied as a system to legitimate the INTERNET in Iran, UK and USA. In this regard, international LAW has high exclusive capability to legitimate this space. These studies lead us toward a proper legal system with legitimated INTERNET.