Introduction: The religious belief and practices are preventing of social deviation, unmoral behavior and social anomy have direct or non direct impact on individuals. Therefore the following research intents to investigation the role of religiosity in family pathology.Methods: The research method was descriptive and in this research, 882 subjects of Tehran were studied. The data gathering means were Enrich marital satisfaction scale, family pathology and Religiosity questionnaire.Results: The results showed, that: there are significant correlation of -0.23 between religious beliefs or practice and family pathology, 0.44 between religious practices and child rearing and 0.35 with self concept.Conclusion: If the religiosity increase the family pathology in may decrease. Therefore the religiosity may be strong policy for prevention of family pathology.