The article discusses the creation and functioning of the institutions of church meetings and parish council of the Roman Catholic community of St. Petersburg in 1710 – 1760 -ies On the basis of the analysis of the archival and published sources, as well as domestic and foreign works, the formation of church meetings, the structure of parish council, their composition and functions of Roman Catholic Community of St. Petersburg in in 1710 – 1760 -ies are examined. As a result the author has come to the conclusion that the Catholic Community worked up of a question of structure of religious institutes and their functions without assistance. Moreover its solution were taken into account by the Russian government in the preparation of the Regulation granted to the St. Petersburg Roman Catholic church (12 February 1769).