The paper presents a description of the nature and content of the social psychological health of the family and its main indicators, the basic laws of the development of social psychological health of the family. On the basis of the psychological analysis of the conditions of life and well-being in the basic functions of life are revealed properties, levels of social psychological health of the family. In the above method of diagnosing mental health of the family sets out the scope, procedure diagnostic approaches to the study of her condition, are considered diagnostic problems obtaining psychological information about the family, the practical application of methods of diagnosis of mental health of the family, as well as data processing and interpretation, the formation of the diagnosis and recommendations.