The article is devoted to the study of the problem of the formation of the ideology of the Moscow principality. The purpose of this study is to identify the ideological origins and features of the formation of the ideology of the rule of the Moscow sovereigns at the end of the XIV – the first half of the XV centuries. To achieve this goal, the historian, firstly, draws on a wide range of sources, which will demonstrate the scale of changes in the theoretical foundations and ways of representing the power of the Moscow princes; secondly, the author took the principles of studying the phenomenon of power formulated by representatives of the Russian direction of historical anthropology as the basis for the research program of this article. Using the advantages of the existing approach, the researcher determined which ideas, images, forms and mechanisms were used to consolidate in the minds of contemporaries new ideas about the constantly expanding powers of power of the Moscow princes. The article concludes that the created great-power image of the Moscow rulers laid the ideological foundation for the growth of the political power of the Moscow principality.