Objective:To analyze the relationship between passive social network site use,body surveillance and body shame of adolescents.Methods:Passive Social Network Site Use Questionnaire,Body Surveillance Scale and Body Image Shame Scale were used to follow 348 adolescents for one year.Results:(1)Cross-lagged regression analysis indicated that pre-test passive social network site use significantly predicted post-test body surveillance;pre-test body surveillance sig-nificantly predicted post-test body shame;T1 body shame significantly predicted T2 body surveillance.(2)Multiple-group analysis showed th...