The family, as one of the important institutions of society, influences other social institutions; it also influences the society as a whole. If the family fails to function normally, it will cause a great many problems. In other words, healthy society involves healthy families. This research has been concerned with family health and the social factors which influence it. The method of this research is survey. The population consists of the Tehrani families, with at least one child, who has lived together at least five years. The sample consists of 367 families that have been randomly selected. The data gathering is based on the questionnaires. The data analysis shows that… The second variable which has a strong and meaningful relation with family health is the relationship between the families with the relatives. The economic and cultural similarity of navigated family as well as the social environment showed no meaningful relationship with the family health. families are influenced by the society. The family is closely related to the social, political, economic, and social institutions; these institutions influence the family both directly and indirectly.