In 2011 Ukraine for the first time introduced compulsory pre-school education for five year olds that was the next step of modernization of the education sector in the state. Under current law it is established that an important task of educational reform is to create conditions not only to enhance the intellectual potential of the nation, comprehensive development and formation of the creative personality of each child, but also for preserving physical and mental health. The «quality of life» is defined as the ratio of own individual position in society in the context of culture, value systems of the society and the goals of the individual, their plans and possibilities. The quality of life of children is determined by physical, social and emotional factors that are essential and are constantly operating factors. The study of the life quality of preschool and younger school age children reveals not only health, but also evaluates the fulfillment of social functions, appropriate to the age and sex of the child population. The well-being of the family leads to the formation of stereotype values of children. Timely identification of the social difficulties of their families provides an opportunity to determine the influence of the corresponding factor on the quality of life of children. Without solving the problem of preservation of children’s health in physical, psychological and social aspects it is impossible to raise the question of the health of the whole population. An assessment of social well-being of the family is one of the factors in quality of life of preschool and early school age children. It was determined that 11 % of households have poor working conditions that affect children’s daily routine and start attending preschool. In families with a busy schedule of working children spend 1.5 hours per day on television and computer. The problem of modern families is the spread of bad habits – smoking mother have 33.33 % of children and the father have 41.84 % of the children. In addition, 6,78 % of children at the same time have the father who has two bad habits – smoking and drinking.