The article is devoted to describing the foundations of environmental culture in children of senior preschool age. The ecological culture of preschoolers is considered as an integrative personal education, including interconnected components such as: cognitive and emotional-value, etc. It was shown that the education of environmental culture is defined as purposeful pedagogical work to develop in children environmental knowledge and ideas, a respectful attitude towards natural objects and appropriate behavior skills in nature. The proposed program for developing an environmental culture among older preschoolers includes a set of classes on ecology with elements of experimentation and methodological support of educational work in a preschool institution on environmental education of children.