This study aims to determine the authority of the notary in a deed on electronic transactions carried out by the parties domiciled outside the office of a notary and to know the power of a notary deed that created by Cyber Notary in Indonesia. The method used in this research is the approach of legislation (The Statute Approach) and the path of the legal concept analysis (Analytical and Conceptual Approach). The results showed that the authority of the electronic notary deed is not bound by a notary office area so that the legal position same with notary office by deed made by the notary on electronic transactions conducted in the region of the notary office. The strength of the notarial deed made by a cyber notary has not yet ensured legal certainty that the power of a notarial deed made together with the strength of the deed under the hand.