This research aims at analyzing political secularism in Indonesia and most specifically dealing with the recurrent polemic upon the relationship between Islam and State. The research initially seeks to describe the political situation of the country where the formalistic and substantives debate, especially on their distinctive approach to stipulate the proper role of religion on the country’s politic, could be witnessed. The description, however, will deal more on the latter political paradigm which is increasingly grasping an impressive preference from numbers of political individuals and institutions particularly when they come to discuss Islamic tenets and their application within the context of a pluralistic society like Indonesia. Using normative and socio-historical approaches, the paper argues that this political preference, despite its convincing successes in Islamizing the country’s politic, still suffers from numbers of defects that finally raise our apprehension. These defects summarily provide proofs to the questioned commitment of the substantive to the Islamic political values as a whole; the one which reveals an agreed separation of the state and religion; the one of secularism.