This paper,by virtue of a close reading,examines the essential relationship between man and nature,man and animals revealed in The Call of the Wild,further establishing the equal status of nature and establishing the ecological ethics of harmony between man and nature.Man should shift from paying attention to the value of nature to the natural ontology and realize the leap from the natural value theory to the natural essence theory.It also prompts us to slow down in the rush of modern life,to listen to the whispers of the heart and the call of nature.