Naturalistic literature is a product of the development of American society to a certain stage and is considered a new development of American realism. The main characteristics are: objectively depicting social reality in various forms, using the new philosophy of life to shape characters, and using the theory that social existence determines social consciousness to conceive plots. The content is rich and colorful, the art is refined, and the perspective is novel and unique. It is a literary work for the "lost generation" laid the foundation.