中文摘要：

为探讨社交网站真实自我呈现、线上积极反馈、一般自我概念和青少年生活满意度的关系，采用社交网站真实自我呈现问卷、线上积极反馈问卷、一般自我概念量表和生活满意度量表对554名中学生进行调查，结果发现：（1）社交网站真实自我呈现、线上积极反馈、一般自我概念和生活满意度两两之间显著正相关；（2）社交网站真实自我呈现对生活满意度没有直接预测作用，但能通过三条路径的间接作用影响青少年生活满意度：通过线上积极反馈的中介作用；通过一般自我概念的中介作用；通过线上积极反馈和一般自我概念的链式中介作用。研究结果进一步揭示社交网站真实自我呈现对生活满意度的作用机制，能为社交网络时代的青少年发展自我概念与提升生活满意度提供有益建议。

英文摘要：

Nowadays, social networking sites （SNS） have been popular all over the world and already integrated into people＇s daily lives. Individuals use social networking sites out of lots of motivations such as entertainment, needs of connecting attd belonging, maintaining and deepening relationships as well as self-presentation. Self-presentation, which was also called impression management or impression regulation, refers to the process in which one controls the content of the information and the way it is presented in order to affect the formation and change of their impressions on others. Self-presentation is quite a common phenomenon in interpersonal interactions in offline lives. With the development of the Internet, more and more individuals began to present themselves in eyberspace which provided them with a relatively safe environment. And social networking sites are considered as the ideal platform of self-presentation for people to engage in self-presentation through social networking sites profile construction, status updates, photo album management, message-posting and so on. Researchers revealed that as most social networking sites friends are offline friends who know or may know the presenter easily in the real life, individuals may have to present true information about themselves in case that others believe they are dishonest. Therefore, honest self-presentation is one of the main strategies that people adopt when self-presenting. Existing research also has indicated that SNS honest self-presentation has a significant effect on life satisfaction, and online positive feedback, as well as general self-concept, might play important roles between SNS honest self-presentation and life satisfaction. To investigate the relationship between SNS self-presentation, online positive feedback, general self-concept and life satisfaction, a survey research method was adopted in which the SNS Honest Self-presentation Questionnaire, the SNS Positive Feedback Questionnaire, the General Self- concept Questionnaire a