This article provides a comparative analysis of the ethical views of the ancient Greek philosopher Aristotle and the great thinker of the Muslim East, Ibn Miskawayh. During the study, the ideas of both philosophers about happiness, virtue, the perfect man, and moral perfection are studied. Also, similarities and differences in their ethical concepts are identified, and the connection between Western and Eastern ethics is analyzed. As a result of the study, it was proved that Ibn Miskawayh's ethical views are the result of the interaction of Aristotle's philosophy and the enrichment of these ideas with Islamic ethics.