Introduction. In modern legal reality the methodology for studying economic relations is a combination of various theoretical and legal instruments, approaches, principles that contribute to the process of a more detailed study of laws and formation of legal regulation of the sphere of interaction between various subjects in the economic system, which is especially important during the period of widespread digitalization and globalization of the socio-economic processes surrounding us. Church law, being a system of norms governing the organization, management and property relations of religious institutions, is at the intersection of canonical and civil law. Modern legislation in the field of economic and legal relations requires fundamental study and systematization, which makes it possible to establish a unified methodology of economic law of the subjects of church law. Theoretical analysis. Through the theoretical and legal analysis of the topic, it was possible to find out that the methodological foundations of the study are based on the norms of church law and the classical law school, and the methodology for studying economic relations in the system of church law is multilevel and complex, combines philosophical, legal and economic methods, which contribute to a more objective and comprehensive research into the legal nature of the norms of economic law of the subjects of church relations, as well as their influence on the economic processes that take place in society. Thus, the economic legal relations of the subjects of church law are legal relations arising over material and financial benefits. Empirical analysis. It was revealed that, in practice, economic relations in church law are regulated by a formal legal method, although every year economic and legal, interdisciplinary approaches to their study are being increasingly introduced. The methodological foundations of research are currently undergoing a transformation from the dominance of formal legal methods to a comprehensive interdisciplinary approach. Thanks to the combination of legal and economic methods of analysis, it becomes a necessary condition for increasing the effectiveness of regulation and law enforcement in the field of economics and economic legal relations of the subjects of church law. Results. The result of the study was the justification of the complexity of the methodology for studying economic relations in church law. It has been proven that the methodology combines philosophical, general scientific, special-legal and interdisciplinary methods, which also affects the approaches to the study of the economic rights of the subjects of church law, because the combination of dialectical, systemic, historical-legal and structural-functional methods provides a theoretical foundation for understanding the nature of economic relations. It also became clear that economic relations in the field of church law cannot be investigated without applying the methods of economics, statistics and sociology, which significantly expands the toolkit for analyzing the essence of church law. The methodology for the study of economic relations in church law is developing towards the integration of law and economics.