The article deals with the organization of excursions into nature for older preschoolers as a special form of environmental education. The urgency of this problem arose due to the exacerbation of the ecological crisis and the need to change people's attitude to the natural environment from pragmatic to ecocentric. Start solving these problems should be with pre-school age. The purpose of the article is to prove the effectiveness of environmental excursions with older preschoolers as a form of environmental education. Research results. Because of the difficulty in organizing and conducting excursions, they are not often used in pre-school education institutions, although they provide solutions to many tasks, both educational and educational. The organization of an ecological excursion requires preliminary preparation of the educator and children, the selection and use of a number of methods and means, in particular, problem and research tasks, and a final discussion is required to consolidate the results. In the course of the study, we identified levels of ecological upbringing and defined their criteria to prove the effectiveness of the system of ecological excursions. As a result of the work done, the number of children with a high level of ecological upbringing has noticeably (50-70%) increased, they have developed knowledge, a positive attitude towards objects of nature and environmentally friendly behavior. Conclusions and perspectives of further research. As the study shows, environmental excursions should be actively used in the practice of preschool education institutions as an effective form of environmental education of children.