This paper seeks to respond to the question of how secularism affects the social realm of the human. Acknowledging the influence of secularism as a thesis on different aspects and realms of the human life, it, by a descriptive-analytic method, concentrates on the quality and amount of secularism influence on the social realm. The social realm embraces a wide variety of elements and contexts, including: social structure and institutions, ethics and social values, social rules and regulations, social behaviors and relations, social planning and administration, social movements and groups and new religions. The kind of secularism's effect on each of them is different. With respect to the main purpose of this thesis, which is neutralizing and, at the end, removing religion from the social realm of the human, it appears that with the lack of religious teaching, this domain will be in trouble in the dominance of secular thought and gradually the contexts of religion's influence and currency in life of the human will be ruined.
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