The implementation of the Healthy School Strategy (EES) is evaluated through a situational diagnosis of nursing in a Private Education Institution in Santa Marta, Colombia, taking into account the National Guidelines for Healthy School Strategies. Single case study, through two phases: one diagnosis and one intervention. The diagnostic phase is cross-sectional descriptive. The intervention phase was designed and framed in a field of action with the members of the educational community. It is found that the educational Institution does not comply with all the guidelines. Workshops and talks were held that addressed issues of self-care, caring for the environment and life skills (self-esteem, self-knowledge and accident prevention), adequate food, hygiene in food handling and management of diseases prevalent in childhood. The educational institutions, taking into account the regulations of the implementation of the ESS, were opened to new paths that strengthened intersectoral work, seeking to complement the mission of each sector to go beyond child survival and achieve a better quality of life for Girls, boys and young people of schoolage.