The article presents the main trends in the analytical epistemology of religious belief. Their interrelations and mutual influences are shown. The author argues that epistemology of religious belief has risen as one of the possible answers to the Gettier- problems. Therefore different trends in religious epistemology are bounded not only with each other, but also with trends in general epistemology. As a result of the analysis of all major trends in epistemology of religious belief (reformed epistemology, social epistemology, virtue epistemology, problem of the epistemic authority) the author concludes that the core of each trend is an attempt of defining the phenomenon of religion itself. Hence it is possible to consider epistemology of religious belief as the next step in the history of such attempts. Since finding appropriate definition of the phenomenon of religion is a special task of philosophy of religion (both in analytic and continental traditions), the author argues that epistemology of religious belief is the essential part of philosophy of religion as a scholar discipline.