Aqlania: Jurnal Filsafat dan Teologi Islam Vol. 14, No. 1 (Januari-Juni) 2023, p. 113-130. 113 Implementasi Baik dan Buruk dalam Filsafat Akhlak Menurut Perspektif Muhammad Taqi Mishbah Yazdi Basyir Arif Fakultas Ushuluddin UIN Syarif Hidayatullah Jakarta, Indonesia arifbasyir@uinjkt.ac.id Arif Dwi Haryanto Fakultas Ushuluddin UIN Syarif Hidayatullah Jakarta, Indonesia arif.haryanto9618@mhs.uinjkt.ac.id Aqlania: Jurnal Filsafat dan Teologi Islam is licensed under a CC BY Abstract: This research discusses the implementation of good and bad in moral philosophy from the perspective of Muhammad Taqi Mishbah Yazdi, one of the contemporary philosophers from Iran. The purpose of this research is because in today's reality there are still many people who do not know the true meaning of good and bad. The words good and bad are so abstract in value for most people. This research is a literature study with a qualitative approach where research data is obtained from Muhammad Taqi Mishbah Yazdi's works in the form of books and lectures. The result of this study is that Muhammad Taqi Mishbah Yazdi stands on his rational argument, he believes that human beings are able to know what good and bad mean independently. Also that the concept of good and bad has only two postulates, the first postulate is everything that is useful in achieving the goals we want is good, and the second postulate is everything that hinders the achievement of the goals we want is bad. Muhammad Taqi Mishbah Yazdi's moral arguments are based on epistemological conditions. In his formulations, he also gets references from Western thought (pragmatism and utilitarianism). His ideas are influenced by Mullā Shādrā's philosophy of transcendentalism. Keywords: Good and bad, Morals, Muhammad Taqi Mishbah Yazdi Abstrak: Penelitian ini membahas tentang implementasi baik dan buruk dalam filsafat akhlak menurut perspektif Muhammad Taqi Mishbah Yazdi, salah satu filsuf kontemporer asal Iran. Bahwa dimaksudkan adanya penelitian ini adalah karena dalam realitas sekarang masih banyak yang awam tentang arti baik dan buruk yang sesungguhnya. Kata baik dan buruk begitu abstrak nilainya bagi kebanyakan orang. Penelitian ini adalah kajian pustaka dengan pendekatan kualitatif, dimana data penelitian diperoleh dari karya Muhammad Taqi Mishbah Yazdi berupa buku dan ceramahnya. Hasil penelitian ini bahwa Muhammad Taqi Mishbah Yazdi berdiri pada argumen rasionalnya, ia menganggap bahwa manusia mampu mengetahui apa makna baik dan buruk secara mandiri. Juga bahwa konsep baik dan buruk hanya memiliki dua postulat, postulat pertama adalah segala sesuatu yang berguna dalam pencapaian tujuan yang kita