EN
This paper analyses the existing scientific and methodological approaches to the defining of the term “ecotourism”. Comparative table which sets out the main objectives and functions of each of the interpretations of the authors was formed. The article further develops scientific approaches to the defining of ecotourism functions that are consistent with its objectives and principles. It was proposed to allocate cognitive, saving and motivating functions of ecotourism. We found that in the legislation of Ukraine the content of the terms “ecotourism” and “green tourism” is identified. We analysed the related categories to “ecotourism”, such as: “green tourism”, “agritourism” and “sustainable tourism” and found that ecotourism is part of sustainable tourism that promotes sustainable development and agrotourism – part of rural tourism.