Abstract
This paper assuming the effect of religious decline on family decline, attempts to examine the contrary hypothesis that the decline of the family influences the decline of religion and then to compare briefly the obtained results with Mary Eberstadt's theory. The purpose of this article is to remind the need to pay more attention to the institution of the family in the analysis of the issue of secularization, while the theorists of secularization have often neglect it and that is why this research is very important. The methods used in this paper are descriptive and analytical as well as comparative. The study concludes that the hypothesis of the influence of family decline on the secularization in contemporary societies is defensible according to empirical evidence as well as intra-religious evidence and therefore we can consider the consolidation of the family institution as the most important or at least one of the most important obstacles against the trend of secularization.