The authors, based on analysis of the philosophy of the Eastern peripatetics, have shown that in the philosophical worldview of the middle ages Arabic magazynowanie there are aspects, which indicate that more needs to trace the Genesis of the problem of reason in Arabic philosophy of the middle ages. The article notes that the world of the XXI century is the world of post-industrial, information society, which constantly raises logical and epistemological problems in the field of science and philosophy. Therefore, there is a need for a critical study of the history of this problem, its Genesis and development to identify positive potential and progressive ideas. In this context, the analysis and study of the problem of reason and logic, the epistemological ideas of al-Kindi, al-Farabi, Ibn Sina, Ibn Rushd of the Arabic-speaking middle ages is not only of historical and philosophical interest, but also of actual significance. In this article, the authors consider the problem of reason in the worldview of representatives of Eastern peripatetism of the medieval Arabic-language philosophy of al-Kindi, al-Farabi, Ibn Sina, Ibn Rushd, based on the ideas of Aristotle. The paper presents the historical and philosophical aspect of the problem of reason inherent in the Arabic-speaking middle ages. The cognitive interest of representatives of Eastern peripatetism is connected with philosophy, questions of logic, and the doctrine of reason. Arabic-speaking philosophers in the middle ages were engaged in understanding the epistemological abilities of man, al-Kindi, being the founder of Arabic-speaking philosophy, put forward the idea of types of mind and stages of knowledge. Al-Kindi's positive philosophical ideas were further developed in al-Farabi's worldview. The thinker considered the priority of rational knowledge to be indisputable, in addition, al-Farabi showed an interest in logic, the theory of knowledge and human cognitive abilities. Al-Farabi's philosophy had a significant influence on Ibn Sina's philosophical views. The rationalism of Ibn Sina was also manifested in a very high assessment of logic, the thinker considered logic an introduction to philosophical knowledge. Ibn Rushd in his work developed along the same peripatetic path as his predecessors al-Kindi, al-Farabi, and Ibn Sina. The authors attempt to show that the problem of reason in philosophy and science has its Genesis, associated with the teachings of Eastern peripatetics of the Arabic-speaking middle ages. The teaching of the Arabic-speaking philosophers of the middle ages about the cognitive power of reason, despite the theological context and logical-epistemological limitations, had a progressive role in the history of philosophyd