This essay is to analyze and study human’s encroachment and despisement on nature from the perspective of ecocriticism.Ishmael,as the implied narrator,witnesses the human’s exploitation on nature.The evil consequences are brought by anthropocentrism and people who exploit nature receive severely punishment somatically and spiritually. This essay is to analyze and study human’s encroachment and despisement on nature from the perspective of ecocriticism. Ishmael, as the implied narrator, witnesses the human’s exploitation on nature. The evil consequences are brought by anthropocentrism and people who exploit nature receive severely punishment somatically and spiritually.