The examination of 1519 children aged 1-7 years attending kindergartens has revealed ENT pathology in 46 of 100 examinees. Pharyngeal diseases were encountered in 74.3% of cases with ENT pathology. 67% of poor-health children had ENT pathology. Basing on these findings, the program of health-improving measures in the kindergartens for children with ENT diseases have been designed and introduced including organizational, prophylactic and therapeutic stages. The conditioning results were assessed according to the following parameters; trend in the disease incidence and clinical, functional and immunological indices. The occurrence of the acute diseases fell 2.3-fold, 92% of children with hearing problems improved hearing and hearing tube function to normal. Health-improving measures in special conditioning groups of preschool children proved rather effective.