近几年来,社会上婚外恋的现象逐渐增多,由此引发了一系列对隐私权边界的广泛思考。本文主要从婚外恋的隐私权问题出发,从法理学的角度,通过对法律和道德两者间关系的分析和思考,以行为和事实的具体差异为基础,笔者认为以违法犯罪或行为为直接内容的隐私应当为法律所禁止;而以轻微违法和一般违反社会公共道德的行为隐私应受到保护;以合法权利、正当权益及相应行为的隐私应受到法律的保护。 In recent years, the phenomenon of extramarital affair in society has been gradually increasing, which has triggered a series of extensive reflections on the boundary of privacy. Based on the analysis of the relationship between law and morality and the concrete differences of behavior and facts, this dissertation, starting from the perspective of jurisprudence, considers that the crime or act is the direct content Should be prohibited by law and privacy should be protected with minor violations of laws and social moralities in general. The privacy of legal rights, legitimate rights and interests and corresponding behaviors should be protected by law.