ABSTRACTIslam and Religious Radicalism are happening in Indonesia have been meaningful and double-faced. So, it can be said that Islam ancient (classic) with the contemporary (modern) are very different and even contrary to what has been taught by the Prophet Muhammad and that has been stated in the Qur'an. Radicalism that emerged in Indonesia are mostly departing from dissatisfaction and their desire to make or implement Islamic law in Indonesia. For them, the injustice, the amount of corruption, prolonged crisis and disharmony between the rich and the poor are the result of failure to apply the Islamic law. Radicalism is not suitable in Islamic teaching, so it is not worth to be addressed in the Islamic religion. Because the real Islam th...