The relationship between the church and the secular law is one of the most complicated matters of law theory. The present research featured the law of the Russian Church and its structure with its internal and external church law. The article introduces the opinions of pre-revolutionary and contemporary authors, as well as a historical analysis of the main normative acts of the Russian Church that regulate its internal structure. The church law was defined as a special legal system, similar to

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... ublic law. Historically speaking, the core of the Russian church law remained unaffected by the genesis of the state and legal structure, the changes in the system of church authorities, and the development of state-confessional relations. The central core of the church law still maintains the form of the rules of the apostles, the Ecumenical and Local Councils, and Holy Fathers.