The aim of the reasearch are: 1) To know and to analyze the law system in making notarial deeds generally related to digital era. 2) To know and to analyze the development model of notarial deed authentification in its signing stage in the digital era. The methodology applied in the research is juridical normative approach whereby objectively explaining particular data followed by an analysis based on legal theory and related statutes of research objects. The result of the research were: 1) The making certificates digitally, only can be used in a newsworthy event of a meeting in a company deed. 2) In making general notarial deeds we still have to deal with a notary directly which is based on Notarial Law. 3)The development model of notarial deed in its signing stage in the digital era hasn’t had a compatibility between the Law of Notary Position and Electronic and Information Transaction Law; which resulted in inhabiting of notary’s authority. The recent regulations have not fulfiled people’s need. Due to there is no legal certainty, one day, there will be a problem that can not be anticipated.Keywords : Authentification; Notarial Deed; Online System.