The article examines the system-forming role of the principles of notarial activity as the foundation of public-law guarantees of the Latin-type notariat. The study considers the principles of legality, independence, impartiality, self-organization, self-governance, self-financing, full property liability, and notarial secrecy (Articles 5 and 17 of the Fundamentals of the Legislation of the Russian Federation on Notaries). Particular attention is given to their role in ensuring the balance between public and private interests and in maintaining the stability of civil circulation.