Whose internet regime? ¡§Internet Corporation for Assigned Names and Numbers.¡¨ Although its purposes are nonprofit and to be the global representation, ICANN was criticized that it has been controlled by United State unilaterally since it was built for ten years. The United Nations empowered International Telecommunication Union to establish the World Summit of Information Society (WSIS), and tried to make sovereign states to co-govern the internet regime in 2003 and 2005. However, it was failed. Hence, this thesis retrospects the causes of WSIS failure with neo-realism¡¦s perspective and analyses the historical events and relative documents. The study finds that the core reason of WSIS failure is because ICANN is the institutional product of hegemony in the historical context. On the other hand, the material inferiority of WSIS and the structural constriction lead to the total failure of anti-hegemony power.