Self-disclosure is a window for individuals to express their feelings, thoughts and opinions to others. Self-disclosure was first proposed, defined and developed by Jouard (1958). He first thinks that self-disclosure is that an individual reveals information about himself to the target person (the person who exchanges personal information with him). Later, in his book Transparent Self, he defined it as the process of telling another person about himself and sincerely sharing personal and secret thoughts and feelings with others. Since then, self-disclosure has attracted the attention of social psychologists, interpersonal scholars, clinical counselors, therapists and other multidisciplinary researchers, and has been defined and studied differently. Individuals reveal their own information (including thoughts, feelings and experiences) to others orally, which plays a major role in the development and maintenance of intimate relationships. Self-disclosure is regarded as an interactive process, which has the following characteristics: first, self-disclosure is a two-way and continuous cycle process, not a single event; Second, self-disclosure is situational, and the situation will affect the process of self-disclosure; The researchers classified the types of self-disclosure from different angles, mainly including the following two categories: 1. Descriptive self-disclosure and evaluative self-disclosure mainly refer to the disclosure of factual information, including the thoughts and experiences of the individuals concerned; Evaluative self-disclosure refers to the self-disclosure of personal feelings, evaluations or judgments, including self-evaluation and inner feelings. 2 positive self-disclosure and negative self-disclosure positive self-disclosure mainly means that the content of disclosure is positive to the individuals concerned and will not have adverse effects on themselves; Negative self-disclosure mainly refers to what individuals try to hide or don't want to reveal, which will have a bad influence on their own image. Those who voluntarily reveal themselves will become more attractive to individuals, especially in the initial stage of relationship development. Generally, positive self-disclosure is more in the early stage of communication, and with the deepening of the relationship, negative self-disclosure may increase. Improper handling of negative self-disclosure may lead to the deterioration or interruption of the relationship. Third, all the components in the process of self-disclosure are interdependent and influence each other.