社交网络是生活中最常见的媒介，社交网络中的他人信息能够引起社会比较，对个体产生较大影响。本研究为探讨社交网络中下行社会比较的相关内容，设计了两项研究。研究一对165名大学生展开问卷调查，探究了影响社交网络下行社会比较倾向的因素，结果表明，心理控制源的有势力的他人和机遇维度可以通过消极情感正向预测社交网络下行社会比较倾向。研究二对134名大学生被试进行实验研究，探究了社交网络下行社会比较对情绪的影响，结果表明，社交网络下行社会比较使积极情感水平降低，其中关系亲疏度起到调节作用。本论文研究结果为社交网络中下行社会比较的前因后果及其机制提供了一定参考，对人们在社交网络中合理地使用社会比较策略有一定的启示意义。

Social network is the most common media in life. Other people's information in social network can cause social comparison and have a great impact on individuals. In this study, two studies were designed to explore the content of downward social comparison in social networks. A questionnaire survey was conducted on 165 college students to explore the factors that affect downward social comparison orientation of social networks. The results show that the power others and opportunity dimension of locus of control can positively predict downward social comparison orientation of social networks through negative emotion. Study 2 conducted an experimental study on 134 college students to explore the influence of downward social comparison on emotions under social network. The results showed that: Downward social comparison under social network reduces the level of positive emotions, in which the degree of affinity played a moderating role. The results of this study provide some references for the causes, consequences and mechanisms of downward social comparison in social networks, and have some implications for people to use social comparison strategies reasonably in social networks.