The Sea, one of the most representative works about identity crisis and self-construction, shows Max Morden’s absence of life and struggling in memory. Based on the Psychoanalytic Theory of Literature, this paper aims to study the main character Max Morden’s self-identity crisis and come up with feasible ways to solve the problem. By analyzing Max Morden’s identity crisis and self-construction in The Sea, it reveals the author John Banville’s thinking of value and the meaning of life. It will help people understand the self-identity crisis, its cause, and how to solve it in modern society.