This study aims to investigate how the body satisfaction and appearance management intention of men in their 20s and 30s is affected by men"s objectified body consciousness; their level of SNS use; and their level of weight training. An online survey was conducted on men in their 20s and 30s who do weight training more than once a week, and 201 responses were used for data analysis. For data analysis, frequency analysis, factor analysis, reliability analysis, multiple regression analysis, and mediating analysis using Hayes SPSS process macro were performed. Sub-dimensions of objectified body consciousness—body shame, body surveillance, and control belief—were obtained. It was found that control belief and the level of weight training had a significantly positive effect on body satisfaction, indicating that the higher the control belief and level of weight training, the higher the body satisfaction. It was also found that body shame; the level of SNS use; the level of weight training; and body satisfaction had a positive effect on appearance management intention. This indicates that the higher one feels body shame and body satisfaction, combined with high levels of SNS use and weight training, the higher the intention to manage one’s appearance becomes. Finally, body satisfaction acts as a mediating variable in the relationships between control belief and intention to manage one’s appearance, and between level of weight training and the intention to manage one’s appearance.