In the context of a learning community, preschool represents continuity in preschool development, which includes constantly learning, changing and further developing the theory of sustainable development that govern its practice, along with constant development of the practice itself. Each preschool changes and evolves systematically, comprehensively and in a unique way. Preschool as a learning community develops the awareness of mutual and interactive relationship of all parts of a preschool, as well as preschool activities within the wider social context, including cooperation and partnership with parents in the context of the development of children's understanding of sustainable development. It considers learning to be a lifelong process that exceeds the framework of a particular period of a person’s life or formal education. Pre-school teachers should be the best informed on the contents of lifelong learning for sustainable development and be the most experienced in their implementation. Changes should start from the earliest instances of an education system, because all results of this instance indirectly affect other parts of further education system. It is important to use traditional knowledge, activities and resources that will help in the holistic development of children. A comprehensive development of children provides a foundation for the development of strong citizenship, which is important, not only for the present but also for creating necessary conditions for a future sustainable society. It is our duty and responsibility to emphasize the importance and values of traditional cultural practices in early childhood. It helps strengthen family ties, keeps the traditional practice alive, and supports child development, which are characteristics needed to build a sustainable society. The paper describes practices of Swedish preschool institutions in education for sustainable development. Swedish preschools offer full-day programs for children under six years of age. They have a long tradition of environmental education and a curriculum that defines development goals including relationship with the environment and additionally highlights the value of nature. The national curriculum emphasizes the importance of everyday outdoor activities. It gives specific tasks for Swedish preschool institutions, project about the life of Langvikski. Finally, the curriculum features a very important role of preschool teachers and the importance of children's participation.