伴随着数字连接的日益深化和社交媒体的逐步渗透，“永久在线，永久连接”成为了数字生活的新常态，但是技术与个体的良性连接却出现了持续性危机：过度连接下的重负、社交关系的泛化与浅化，私人-公共界限日益模糊等负面后果共同指向了日益普遍的“社交媒体倦怠”现象。基于SSO模型，本研究构建了以技术压力、信息压力和社交压力为压力源，以社交媒体倦怠为压力反应，以社交媒体断连行为为结果的研究架构，旨在更好探究社交媒体倦怠的压力基础、后续行为和机制逻辑。其中技术压力包括“泛在连接性”和“沉浸性”，信息压力包括“信息过载”和“信息低质”，社交压力包括“在线警觉”和“印象管理忧虑”。社交媒体断连行为则包括“信息忽略”“短暂休息”“控制活动”和“暂停使用”四个不同的维度。此外，还引入在线社会支持作为调节变量。本研究按照经典的“确定研究问题-设计问卷-预试问卷-调整问卷-实施调查-分析数据”的研究流程进行。通过问卷调查的方式收集338份有效样本，使用SPSS26.0和AMOS26.0数据分析软件进行量化分析，具体操作包括描述性统计分析、信效度分析、结构方程模型分析和调节效应检验。研究发现，在压力源方面，技术压力层面的“无处不在连接性”，信息压力层面的“信息过载”和“信息低质”，社交压力层面的“在线警觉”和“印象管理忧虑”，均被验证与社交媒体倦怠之间存在显著正相关。在结果方面，社交媒体倦怠与社交媒体断连中的信息忽略、短暂休息和控制活动之间的正向联系得到了验证，而与暂停使用之间的正向关系未被接受。这说明了个体与社交媒体仍存在“难舍难分”的关系。在线社会支持在社交媒体倦怠与信息忽略、暂时休息和控制活动之间发挥着反向调节作用。本研究结合文献对研究结果进行探讨与解读，提出社交媒体倦怠面临着三重压力的挤压：技术压力反映出媒介化社会的技术异化、信息压力彰显出数字化时代的信息贬值、社交压力折射出网络化社会的“数字拥挤”。同时，社交媒体倦怠情绪与断连行为之间的联系与断裂，更是体现了“数字斋戒”在数字生活之中的“若即若离”状态。希望通过本研究能够提高社交媒体使用者的数字福祉，探索人与技术和谐共生的全新路径。

With the deepening of digital connection and the gradual penetration of social media, ＂ Permanently online, Permanently connected ＂ has become the new norm of digital life. However, the benign connection between technology and individuals has been facing a sustained crisis: the burden of excessive connection, the generalization and shallowness of social relationships, and the increasingly blurred boundaries between private and public domains, all of which point to the increasingly common phenomenon of ＂social media fatigue＂.Based on the SSO model, this study constructed a research framework with Technology Stressor, Information Stressor , and Social Stressor as Stressor, Social Media Fatigue as Strain, and social media disconnection behavior as the Outcomes, aiming to better explore the stressor basis, subsequent behaviors, and mechanism logic of social media fatigue. Among them, Technology Stressor mainly includes Ubiquitous Connectivity and Immersion, Information Stressor includes Information Overload and Low Quality Information, and Social Stressor includes Online Vigilance and Impression Management Anxiety. Social media disconnection behavior includes four different dimensions: Information Avoidance, Short Breaks, Control Activity, Suspend Intention. In addition, online social support is introduced as a moderating variable.This study followed the classic research process of ＂determining research questions-designing questionnaires-pretesting questionnaires-adjusting questionnaires-implementing surveys-analyzing data＂. After collecting 338 valid samples through questionnaire surveys, quantitative analysis was conducted using SPSS 26.0 and AMOS 26.0 data analysis software, including descriptive statistical analysis, reliability and validity analysis, structural equation model analysis, and moderation effect testing.The study found that, in terms of pressure sources, Ubiquitous Connectivity at the level of technology pressure, Overload and Low Quality Information at the level of Information Stressor, and Online Vigilance and Impression Management Anxiety at the level of Social Stressor were all verified to have significant positive correlations with social media fatigue. Secondly, in terms of results, the positive relationship between social media fatigue and Information Avoidance, Short Breaks, Control Activity in social media disconnection was verified, while the positive relationship with Suspend Intention of use was not accepted. This indicates that individuals still have a ＂difficult to part with＂ relationship with social media. In terms of moderation effects, online social support plays a reverse moderating role between social media fatigue and Information Avoidance, Short Breaks, Control Activity.This study combined literature to discuss and interpret the research results, and proposed that social media fatigue is squeezed by triple pressures: Technology Stressor reflects the technical alienation of a media society, Information Stressor highlights the devaluation of information in the digital age, and Social Stressor reflects the ＂digital crowding＂ of a networked society. At the same time, the connection and rupture between social media fatigue and disconnection behavior reflect the ＂if attached, yet detached＂ state of digital abstinence in digital life.It is hoped that this study can enhance the digital well-being of social media users and explore a new path for harmonious coexistence between humans and technology.