In this paper, the authors investigate the needs and reasons for securing notaries when performing notary activities. The paper should investigate and answer, what is the interest of the state, notaries and parties, in connection with performing notarial activity, legal basis and manner of conducting professional liability insurance of notaries, determining the amount of the insured case, the occurrence of the insured case, comparative legal solutions rights. The paper deals with persons who are participants in insurance (insured, insurer, injured party and other persons covered by insurance), the concept and subject of insurance, in this case professional liability insurance, the risk it carries, protection of the injured party and protection of property.