Non suicidal self injury (NSSI) has become a serious social and public health problem allover the world, and the incidence rate is increasing year by year. Although the aim of NSSI is not to suicide, but its negative impact is extremely serious, which will seriously threaten the physical and mental health of adolescents. Virtual Reality (VR), a computer simulation technology, can enable people to enter and experience the artificial virtual world in an immersive way, has been used for the auxiliary treatment of anxiety disorder, post-traumatic stress disorder and other diseases. This study explored the impact of VR on the depression and mental health of NSSI adolescents, so as to reduce the incidence of non-suicide self-injury behavior in NSSI adolescent patients and improve the quality of life of such patients.

Inclusion Criteria:

• According to the diagnostic criteria of NSSI in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders.
• Have a past history of non-suicidal self-injury behavior.
• No virtual reality technology intervention before enrollment.
• age: ≥ 18 to<24.

Exclusion Criteria:

• Those who have serious physical diseases
• Those who cannot cooperate with the completion of virtual reality technology finally complete the intervention content<50%.