本研究以社會滲透理論、媒介豐富性理論為基礎，探討在交友 APP 的情境中，匿名程度的高低與媒體豐富性是否會影響使用者自我揭露的意願，並探討媒體豐富性和自我揭露與使用者幸福感、信任感的相關性。使用 PLS 驗證研究模型後，發現交友 APP 環境中的匿名性與使用者的自我揭露無明顯相關；交友 APP 的媒體豐富性會促進使用者的自我揭露；交友 APP 的媒體豐富性與使用者的幸 福感呈正相關；在交友 APP 中的自我揭露與幸福感無相關，卻能提升使用者彼此信任感。本研究擴展了社會滲透理論與媒體豐富性理論的應用。

 From the perspective of Social Penetration Theory and Media Richness Theory, this study explores whether the level of anonymity and media richness will affect users’ willingness to disclose themselves in the context of dating apps. In addition, this study also explores the correlation between media richness, selfdisclosure and users' trust, well-being. After validating the model using PLS, it was found that anonymity in the dating app environment was not significantly related to users' self-disclosure, and the media richness of dating apps will promote users' self-disclosure. Also, the media richness of dating apps is positively correlated with the well-being of users. However, self-disclosure in dating apps is not related to well-being of users, but it can increase users' mutual trust. This study extends the application of Social Penetration theory and Media Richness Theory.