Ecotourism has been a hot topic in the academic field since it was put forward in 1980s'. The paper reviews the nature of ecotourism, venues, the industry of ecotourism, eco-tourists, academic and management institutions, ecological, eco- nomic and social-cultural impacts of ecotourism and the relationship between external environment and ecotourism in a view from supply and demand of ecotourism product, suggesting that ecotourism is still...