The article discusses Russian-Chinese relations and their impact on the state and development prospects of such an important international region as Eurasia. The authors pay special attention to the evolution of Russian-Chinese relations in historical retrospect, to the peculiarities of forming a strategic partnership between the two leading powers of Eurasia, and to the expansion of their political and economic cooperation. The article notes that the transformation of Eurasia into a significant political force in international relations was associated with qualitative changes in the global economic and political situation, with a new content of models of rivalry and cooperation. The article comprehensively examines the historical stages of the transformation of the Eurasian center of power, the processes of its elevation and fragmentation, and the place in this of Russia and China. Particular attention is paid to the specifics of Eurasian interdependence, the strengthening of innovation factors in the content and forms of the Eurasian transformation. In the analysis of the system of the Eurasian space, the authors focus on highlighting the main trends in the political sphere, strengthening the importance of the organizational forms of relations between the European Union and China, as well as on the features of Russian-Chinese relations in the post-Ukrainian period that influenced the consolidation of the Eurasian economic complex. The article analyzes the nature and nature of the relationship between the emerging Eurasian economy and the national economies of the countries included in the Eurasian space. At the same time, the authors explore the problem of organizing global and regional security spaces and forming the structure of a complex combination of horizontal and vertical ties.