Emily Dickinson was a prominent American poet, whose poems could be divided into about nature, love, death, and religion. It is worth noting that the poems about nature occupy a rather part in number, over one third of all. In the context of ecological deterioration today, it is great significance realistically to reread Dickinson's nature poetry from a new angle, the perspective of eco-criticism, which not many people did before. Through the close reading of Dickinson's nature poems, the thesis attempts to explore the ecological consciousness hidden in Dickinson's natural poetry, which embodies in the harmony between nature and man, such as living poetically in harmonious nature, all the living in nature are equal and awe for nature. The aim of this thesis is to shed light on the appropriate attitude toward nature and toward themselves which human beings should take and inspire people's ecological consciousness to protect our degrading environment and keep our spirit innocent when facing the serious ecological crisis in nature as well as in spirit.