Eco-travel is a spirit travel and culture travel at high level.It became popular in recent years.As a new-born area,it has different identification and many debates at the beginning.However,people understand,enrich and develop the inner meaning of eco-travel through practice,and then form a common sense which in turn contribute to the sustainable development of eco-travel.The nature and characteristic of eco-travel were clarified based on the ecology.The interaction between ecology and travel were analysised in this article.The purpose of these article is to let people recognize nature,return to nature and enjoy nature,thus could encourage the co-development for ecological environment conservation and social culture as well as economy.