Abstract: Adolescence is a period when Body Dysmorphic Disorder(BDD)occurs frequently. This study used the body image disorder self-assessment scale, the negative perfectionism questionnaire, and the comprehensive diagnosis scale for interpersonal relationships to conduct a questionnaire survey among senior high school students from four schools in Baoding City. A total of 593 valid questionnaires were obtained. It measured the status quo of the body dysmorphic disorder tendency, perfectionist personality and interpersonal relationships, and explored the relationship among them. The results show that there are positive correlations in the most of dimensions and total scores between the perfectionist personality and the body dysmorphic disorder tendency, there are positive correlations in the most of dimensions and total scores between the perfectionist personality and the interpersonal relationship, and the interpersonal relationship positively correlated with the dimensions and total scores of the body dysmorphic disorder tendency. The analysis results of the structural equation model show that interpersonal relationships play a mediating role between the senior high school students perfectionist personality and the tendency toward body dysmorphic disorders. In the process of mental health education, it is possible to deal with the tendency of senior high school students body dysmorphic disorder by improving interpersonal relationships according to different personality characteristics.

Key words: senior high school students, perfectionist personality, interpersonal relationship, body dysmorphic disorder tendency