Adolescent appearance anxiety has become an important issue affecting the mental health of adolescents. At present, social comparison, media influence, personality traits and family environment are the key factors contributing to appearance anxiety, while psychological intervention measures such as cognitive behavioral therapy, mindfulness training, body image remodeling and family therapy have shown significant effects in alleviating appearance anxiety. This paper systematically reviews the research progress on the psychological mechanism, influencing factors and psychological intervention strategies of adolescent appearance anxiety, in order to provide a more scientific basis for clinical practice.