The purpose of this study was to examine the role of body talk and body surveillance in the relationship between upward social comparison on image-based SNS and disordered eating behavior. For this purpose, online survey was conducted on 220 female college students aged 19 to 25 years. They completed the Korean Version of Eating Attitude Test-26(KEAT-26), Upward Social Comparison on Instagram, Body Talk Questionnaire on Instagram, and Body Surveillance scale. Findings were as follows. First, upward social comparison on image-based SNS showed significant correlations with body talk, body surveillance, and disordered eating behavior. Second, sequential meditating effects of body talk and body surveillance on the relationship between upward social comparison on image-based SNS and disordered eating behavior were statistically significant. Finally, based on results of this study, implications for disordered eating behavior and limitations of this study were discussed.