The article is devoted to the analysis of the spiritual foundations of inter-confessional harmony in the Kazakh society, which have developed recently in the development of Kazakhstan in the conditions of spiritual revival and cultural transformation. The author reveals the essence of the multi-confessional and multi-ethnic space, draws attention to the impact of globalization and modernization on ethno-confessional and inter-confessional relations in the republic. The author points out the need to pay special attention to the socio-cultural identity of the Kazakh society, which affects religious tolerance as the most important principle of inter-confessional and inter-ethnic relations in the Kazakh society.