Abstract: Environmental pollution and damage is a major problem in the environmental field. Therefore, the regulation to prevent and overcome environmental damage becomes very important. This research is a normative-legal research using a statute, comparative and conceptual approaches. The results show that in Indonesia, Omnibus Law is possible to be implemented to simplify legislation in the environmental field. However, before doing this Omnibus Law method, it is necessary to first stipulate the scope of environmental law material which is the basis for grouping/clustering in Omnibus Law in the field of environmental legislation. It is also necessary to identify laws whose material will be changed, revoked and then merged in an Omnibus Law. The next step is the selection of material from the identified laws which are categorized as overlapping rules which will then be simplified in Omnibus Law. The drafting of a law using Omnibus Law method must also considers the time. The more material rules that will be included in an Omnibus Law, requires a longer time.