本文通过对夫妻忠实义务的概念、设立目的及其作为法律义务的意义与局限的分析,探讨了道德规范与法律规范的关系以及实现道德规范向法律规范的有效转化问题。 Through the analysis of the concept, purpose and purpose of the faithful obligation of husband and wife and their significance and limitations as legal obligations, this article discusses the relationship between moral norms and legal norms and the effective conversion of moral norms to legal norms.