本文对１８世纪著名哲学家费希特所著《伦理学体系》的逻辑结构和主要观点，作了简要的阐述和分析。作者认为，费希特运用当时较为科学的方法对先验伦理原则作了深刻的论述，以感人激情表达了对人类道德完善的热烈向往；《伦理学体系》在对康德哲学进行改造的基础上，发展了康德的先验主义伦理学，而这又直接影响了谢林和黑格尔，具有不可磨灭的学术价值和理当享有的地位。 This article gives a brief exposition and analysis of the logical structure and main points of “ethics system” by famous philosopher Fichte in the 18th century. The author thinks that Fichte uses the more scientific method at that time to make a profound exposition of the principle of transcendental ethics, expressing passionately the longing for humanity’s moral perfection; on the basis of reforming Kant’s philosophy , Developed Kant’s transcendental ethics, which in turn directly affected Schelling and Hegel, with indelible academic value and proper status.