Modern society needs a constructive person who is able to learn about the world around through activity, to realize potential, to show initiative and creative approaches to solving pressing problems. Formation of ideas about sustainable development in children at the stage of preschool education will not only lay the foundations for respect for the environment, but also form the ability to live in a sustainable world in harmony with society, nature and oneself. Sustainable development is understood as a process that includes three components: social, economic and environmental. The purpose of the study is to test the hypothesis that digital technologies, namely the development of projects in the algorithmic language Scratch, will allow children to form ideas about sustainable environmental development. The research methods were a conversation with preschool children on the subject of sustainable environmental development, the study of theoretical and practical material in the authors’ studies on the problem of sustainable development, as well as an experiment applying the methods by O.A. Solomennikova “The World of Animals and Birds” and “The Plant World”; by A. I. Ivanova “Describe the picture”. After the formative stage of experimental work, taking into account the use of digital programming technology in the Scratch program, diagnostics were carried out that showed signifi cant increase in the level of children’s ideas about sustainable environmental development. Thus, a high level was detected in % of older preschoolers (%), an average level was detected in % of older preschoolers (%), a low level was detected in % of older preschoolers of the group (%). Thus, we can conclude that the use of the Scratch digital tool can achieve the desired effect in terms of shaping the sustainable environmental development of preschool children.