One of the factorsthat hampers theimprovement of the investment climatein Indonesia is due to regulatory issues. Regulatory issues related to several industries including the land sector. Based on data from the Ministry of Agricultural and Spatial Planning / National Land Agency of Republic of Indonesia there are about 632 regulations related to land whereas 208 are no longer valid leaving only 424 regulations applicable. Regulation of some 424 hadimplementationproblems and conflicts between agencies.The primary key of law enforcement begins with the quality of theregulation. Due to regulation which has many shortcomings that need to be addressed to improve the investment climate in Indonesia. To overcpme these problems the Minister of Agrarian and Spatial Planning / National Land Agency of the Republic of Indonesia, Mr. Sofyan Jalil threw the idea of omnibus law to resolve regulations problems that influence the growth of investment in Indonesia. Sofyan jalil said that the government is discussing the legislation remedial solutions through the Omnibus Law. Omnibus Law’s existence has been known in legal theories from common law countries. However, the existence of omnibus law is still lessknownamong the academic community of the faculty of law in Indonesia. For that purpose than this article to understand the omnibus law and its use to resolve the regulatory issues in Indonesia. Key words: omnibus law, legislation, harmonization, regulatory reform