Typical American is the representative work of Gish Jen,a famous Chinese American woman writer.This novel is based on the three youth,Ralph,Theresa,and Helen who came to America to study and then became American citizens.This thesis tries to analyze the special psychological state of them from the perspective of psychoanalysis according to Freud’s psychoanalytic theory.Through the writing of this thesis,the author regards that their specific psychoanalytic state is a group features.To learn these special features can help us have a good understanding of people coming from different cultural backgrounds.