The university stage is an important period for a person to change from adolescence to adulthood, and it is also an important period for the development and perfection of self-awareness. Many puzzles in the process of college students' growth often involve self-awareness. Self-awareness is a person's multi-faceted and multi-level cognition, experience and evaluation of himself and his relationship with the surrounding environment, which is gradually formed and developed in the process of socialization. Self-awareness is both the subject and the object of psychological activities. It is a multi-level and multi-latitude psychological phenomenon, which is manifested in three levels: self-cognition, self-experience and self-adjustment. Self-knowledge is the cognitive component of self-awareness, including self-feeling, self-observation, self-analysis, self-concept and self-evaluation. Self-experience is an emotional component of self-awareness, and it is an individual's attitude experience towards himself based on self-awareness, including self-feeling, self-esteem, self-confidence, pride, inferiority and self-blame. Self-regulation is the will component of self-consciousness, and it is a process in which individuals take self-action on their own psychological activities and behaviors, including self-reliance, self-discipline, self-supervision, self-control and regulation. These three structures are interrelated and integrated, and become the core content of a person's personality. First, the definition of self-awareness After a long discussion in the field of psychology, psychologists in various countries still hold various views. Freud emphasized that ego is the sum of psychological energy based on biological energy, which dominates all human behaviors. Erickson, a representative of the new psychoanalysis school, discussed the connotation of self-consciousness from the formation and development of self-consciousness. G. allport summed up some scholars' expositions about self, and divided the self into eight categories as the subject self; Self as the object to be recognized; As primitive egoism; As an impulsive self; Self as the receiver of spiritual process; Self as a goal seeker; Self as the subject of action; Self as a cultural subject, etc. James believes that self-consciousness has been divided by the stable and holistic me in childhood, and two "I" have appeared.