Although the assessment of quality of life in past 30 years became more important in the praxis of health care, measuring of quality of life is still relatively new and poorly investigated concept. Quality of life refers to the physical, physiological and social domains of health, seen as distinct areas that are influenced by a persons experiences, belifs, expectations and perceptions. Today it is a very important issue in health care practice as well as in scientific research. In our country there were no trials of measuring of quality of life, so this study could be considered as a first of that kind. Aim of this study was to show components of health and quality of life among school children and youth as well as differences considering their age. Culturally adapted version of Child Health Questionnaire (CHQ) was used as an assessment o instrument. The study was performed on a random sample of children and there parents (N =600). This paper describes the study results from parent version of questionnaire. At almost all single scales of health and quality of life, as well as on aggregate scales of physical and psychosocial well-being, most adverse values were obtained for elderly children. Significant differences were found on scales of physical health, accomplishment of social role (considering emotional state and behavior), bodily pain, mental health, self-esteem, family activities and family cohesion, as well as on a aggregate scale of physical well-being. This results confirmed an influence of age on quality of life among children.