Adolescents are a group with high incidence of non-suicidal self-injury behaviors. Relevant research shows that the motivation of adolescents to commit non-suicidal self-injury behavior has a great influence on self-injury behavior. This article reviews the research progress of adolescents' self-injury behavior motivation from three aspects： emotion regulation， interpersonal influence and self-reinforcement， hoping to provide reference for intervention and treatment of adolescents' self-injury behavior