The incidence of non-suicidal self-injury （NSSI） among adolescents is escalating annually， becoming a global mental health concern. NSSI is often accompanied by the occurrence of mental illnesses such as depression， anxiety disorders， borderline personality disorders， and drug abuse， which seriously endanger the physical and mental health of adolescents. This article provides a review of the risk factors and treatment methods for adolescent NSSI behavior， with the aim of improving understanding of this behavior and achieving early prevention and intervention