AbstractThe article analyses the contribution of the Kazakh traditional ethics to the formation of a modern harmonious world. The peaceful and harmonizing nature of the philosophical ethics of various civilizations at different stages of history characterizes the diversity and unity of human aspirations for peace and harmony. The development of nuclear weapons in the modern world is a serious challenge to this concept of development. Ethical ideas of different nations can be used as a weighty argument in favour of the refusal of mankind from nuclear weapons. The authors focus on the harmonious worldview of the nomads, who understood the interconnectedness of the world of man and the world of nature.