One of the topics requiring the integration of education and medicine is the formation of health and a healthy lifestyle for schoolchildren. In addition to thematic integration, integration in the use of the same methodological approaches, methods of presenting information, and systematizing knowledge is important. This approach will allow to obtain the integrity of knowledge on the topic, develop motivation for its knowledge, generalize and systematize knowledge, create a single information space. The purpose of the study is to create a regional three-level model of a single information space on the formation of health and a healthy lifestyle of schoolchildren. Materials and methods: in 146 schools in Ivanovo and the Ivanovo region, a three-level organizational structure of a single information space on the formation of health and a healthy lifestyle of schoolchildren was introduced. For its development and implementation, the following methods were used: information-analytical, system and situational analysis, organizational modeling, expert, organizational experiment, statistical. Results. In the Ivanovo region, a three-level organizational structure of a single information space has been created on the issues of promoting the health and healthy lifestyle of schoolchildren. At the first level, educational organizations have formed: an information and methodological center as part of school health cabinets, volunteer teams that distribute information among students, a health self-assessment cabinet with an automated health self-assessment program for adolescents aged 15-17 to increase schoolchildren's knowledge about their health and motivate them to formation. At the second level, the Regional Center for Schoolchildren's Health was created, which operates in cooperation with schools in the Ivanovo Region, health centers, medical institutions in the city of Ivanovo and the Ivanovo Region. At the third level, the Coordinating Council was created, which collects, systematizes, analyzes information about the health, awareness, motivation for a healthy lifestyle of students, identifies problems and main patterns in the development of informing schoolchildren in the region, develops regional programs to improve the competence of physicians, teachers, psychologists, students and parents on the management of the health of schoolchildren, used in educational organizations, the Regional Center for Schoolchildren's Health, and in advanced training courses for teachers. Conclusion. The creation of a three-level regional model of a single information space in educational institutions for the formation of health and a healthy lifestyle of schoolchildren allowed doctors, teachers, psychologists of the region to unequivocally approach the understanding of the problem, its implementation with increasing awareness of these issues among all schoolchildren, teachers, parents, increased motivation for a healthy lifestyle in 2/3 of students and parents.

regional model, common information space, healthy lifestyle, health, schoolchildren.