This article analyzes the compatibility of the theory and practice of Marxism-Leninism and Orthodox Christianity in relation to the class division of society and class struggle. The significance of the study is due to the controversy (often acute) on this issue, which is directly related to the social structure. The article provides a historical and theological analysis of the topic under study on the basis of a critical study of the works of the founders of Marxism-Leninism, their closest associates, historical (...) documents on this issue, as well as historical and theological works. This article attempts to present a systematic analysis of the subject under study. It examines the relationship between the teachings of Orthodox Christianity and Marxism-Leninism about classes and class struggle, as well as their application in practice, and appeals to opponents. The novelty of the study lies in the fact that some documents are analyzed for the first time in connection with the issue under study. Also, in more detail and systematically, in relation to the available works, the analysis of the relationship between the teachings of Orthodox Christianity and Marxism-Leninism is carried out. The purpose of the work is to study historical documents, as well as historical and philosophical works on this topic. The article concludes that Marxism-Leninism is directly opposed to Christianity in the issue of attitude to the classes of society and the class struggle. In the course of historical development, the intensity of the class struggle changed, but not according to Marxism-Leninism, but depended on the state of morality, religiosity, the development of new trends in the social, scientific and technological development of mankind. A Christian understanding of the essence of the state can provide the basis for the national idea of Russia. (shrink)