The relevance of improving the quality of preventive medical surveillance of children and adolescents is undeniable, which provides the basis for the search for methodologically sound approaches to an integrated assessment of the health of the child population. The purpose of the study was to develop and create the software product «Computer Program «Comprehensive Assessment of the Health of Children and Adolescents». For realization of the purpose, patent search, compilation of a technical specification on the basis of criteria of assessment of children’s health and assignment to a particular group of health, writing of a software product using modern programming libraries, as well as preparation of accompanying documents for registration of an intellectual property object were performed. The result of the work was the «Computer Program «Comprehensive Assessment of the Health of Children and Adolescents», designed for the integrated assessment of the state of health of children and adolescents during screening and preventive examinations. After filling in all fields, the program processes the received data and displays the final result — assessment of the child’s health status with the definition of the health group. Information about the examined patient is sent to the program database. The built-in database allows you to systematize the data obtained, analyze the health indicators of the surveyed contingents both in one-step and in longitudinal studies. This program product can be used in the work of medical organizations, higher educational institutions of a medical profile, physical education organizations and institutions of the Federal Service for Supervision of Consumer Rights Protection and Human Welfare in the Russian Federation.