Since the upheaval in the Middle East，the Islamic political forces experienced ups and downs in Tunisia，Egypt and other countries in the region；Saudi Arabia，Qatar and other Gulf countries intensified their political game by competing for regional religious and political discourse right. The Arab world has seen an increasingly obvious politicization of religion and a strong rebound of religious extremism，which jointly resulted in the deteriorating security situation in the region. By building the discourse system which gives emphasis to sectarian opposition，the Salafist forces have forged transnational linkage effects against Shiite forces. Religious extremism represented by the “Islamic State” further intensifies the competition for ideological discourse right，and both “far enemies” and “near enemies” have become the central targets of attack. It is predicted that in the future the Arab world will face gradual split of Islamic-political thoughts from inside，challenge from religious extremism to mainstream Islamic values，and the networking of sociopolitical thoughts and extremist ideologies.