According to the theory of social comparison, this article constructs a conceptual model of social comparison, self-presentation, tourism envy and travel intentions, and use the questionnaire tool to obtain basic data for the young tourists who often use social networking sites in the Yuelu Mountain-Orange Island tourist scenic spot. The structural equation model reveals the mechanism of action and gender differences in tourism on social networking sites.The results show that social comparison has a positive effect on tourism envy, while positively affecting travel intention; positive self-presentation negatively affects tourism envy and its relationship with travel intention is not significant; real self-presentation positively affects travel intention and its relationship with travel envy is not significant. The effect of travel jealousy has obvious gender differences. The young female tourism envy has a significant positive effect on their travel intention, with an effect value of 0.251. The real self-presentation is negatively related to tourism envy, with an effect value of -0.043 and not significant. The influence of young male tourism envy on the travel intention is not significant, with an effect value of 0.114; there is a positive relationship between real self-presentation and tourism envy, which is insignificant, with an effect value of 0.077.