The legal certainty of the land rights certificates should be absolute and has been stipulated by the Rechtsverwerking institution in Government Regulation Number 24 of 1997 concerning Land Registration. However, in reality, every individual who has adequate evidence and data can still break the validity of the data in the certificate even though the period of 5 years has been exceeded. The objective of this article is to determine the legal certainty of land rights in the land registration system in Indonesia. The research method used by the author is a normative juridical method. The results of this study show that the negative land registration system has a positive tendency that actually does not guarantee legal certainty to the holders of land rights certificates