There is a higher incidence of digital self-harm among adolescents and it is more common among adolescents with peer rejection or injury.The motivation for digital self-harm is diverse but more likely to be a means of emotional regulation.The present review clarifies the definition,prevalence and high-risk population of digital self-harm,and explores the motivations,warns of the crisis and risks of adolescent digital self-harm,aims to provide necessary theoretical support and assistance for the prevention of dig-ital self-harm among adolescents.