This paper aims at an historical analysis of the formation of a Conservative Moral Identity on big Brazilian evangelical denominations. Following the historical development of Brazilian Pentecostalism and undertaking the Brazilian Military Dictatorship and the following 1988 restoration of the Democratic Regime as political moments, this paper deals with conceptual divisions concerning Pentecostals and Neopentecostals paving the way to the construction of an Evangelical Identity made by the mass media, and the following evangelical participation in Politics aligned with reactionary conservatism. The main investigation is to try to explore the way by which the evangelical participation in Brazilian politics started and was developed, as well as the reason why evangelical politicians undertook the ideological path of the Conservative Right. We seek to lay more attention to the different evangelical traditions, their values and histories to demonstrate that, despite much is said about a evangelical political agenda, there is no single way of evangelical participation in Politics.