Abstract: The study revealed the movements striving upon the implementation of formal Islamic Shari’a in the life of the people and of the nation in Indonesia. Among them were the movements of Majelis Mujahidin Indonesia and Hizbut Tahrir Indonesia as well as several Shari’a practices in South Sulawesi, West Java and Aceh. The main concern of this study was to investigate why these movements showed off powerful militancy despite lacking of support from Islamic mainstream movements and even reproduced their ideology, how the Islamic Shari’a movement was within the religious dynamic and community development in Indonesia. This study applied sociological approach with the perspective of social movement. Methodologically, it was a synthesis of literature and field study in which documentation, in-depth interview and field observation were used as the methods for data collection. The finding of the study showed that the high militancy in Islamic Shari’a movement was the result of integral and ideological Islamic law perspective toward life. Islamic Shari’a emphasized on the legal and ethical aspects that should be practiced in Muslims’ formal life, including Muslims’ role as citizens. Islamic sharia movement is an endeavor to represent the “authentic” and “kafaah” (the implementation of Shari’a thoroughly) Islam in accordance to rampart and conservative orthodox Islam; thus, it exposes the phenomenon of salafi movement reproduction. This movement was established and subsequently developed as a part of Muslims’ life in Indonesia that was indicated by the propensity of the cycle of crisis, the rise of religious revivalism, conflict phenomenon, sectarianism and social marginalization.