The promotion of health education in schools has been operated continuously in Thailand with expecting to enhance a healthy society based on the definition of health under the new trend "A comprehensive and integrated health and social dimensions of body, mind and soul into a lifestyle linked and interrelated the human relationship with a physical and social environment". This research aims to remove the lessons on building health and well-being to children and youths in schools from nine development projects, and then to determine a platform of healthy schools in order to provide a framework to supporting the improvement of healthy children and youths in the context of schools in Thailand and to make it going in the same direction.