The basic problems such as the definition of happiness, its nature and its relation to philosophy have been systematically addressed by Ibn Miskawayh, who is among the most important names of the tradition of Islamic moral philosophy. The philosopher has examined these problems both Tahdhib al-akhlak wa-tathir al-a'rak and Tartib al-Sa'adat wa Manazil-al 'Ulum. In this review, Tartib al-Sa'adat wa Manazil-al 'Ulum will be tried to be introduced and examined. The works on Ibn Miskawayh has often not included this study. This can be easily detected when the Islamic moral philosophy literature is searched. This work, which is a meticulous work, is extremely valuable both for revealing the relationship between happiness and philosophy, for revealing the connection of both science and morals, and for addressing some problems of philosophy. In this work, in which the rational bases of morality are revealed, attempts have been made to make contributions to the field of morality by introducing the works of Aristotle. Ibn Miskawayh, who continued the tradition of Aristotle, handled this work in two main sections. In the first part, happiness is processed; in the second part, the ranks of the sciences are discussed.