Regulations to fight plague attacks can be identified to have specific characters. This character forms a specific model. The regulations for dealing with plague are numerous. Specifics character of the regulations for fighting the plague attack is first, all of the regulations were directed to fight the plague. Second, it is made quickly. Third, it is made to complete the emptiness of plague regulation. This research is important to do to find a model for preventing the spread of the Covid-19 plague. The research question is how the 'regulatory model for fighting plague'? The regulations for dealing with plague describing as a 'plague regulatory model' is the theory as a result of this research. The regulatory model found in this study is obtained in the form of the „tree regulation model‟. The 1945 Constitution is the root of the regulation tree. Law Number 4 of 1984 is the basic law as stem regulation. Law Number 6 of 2018 and Law Number 2 of 2020 as the bough regulation, and then another form of regulation as the small-branch regulation. The leaf is the content of the regulation. This research used a qualitative method, with a grounded approach, which is based on document data in the form of statutory regulations. The result of this research is the 'tree-regulation model'. This model is the form of a regulatory model for fighting the plague attack. The purpose of this model is to eliminate disease outbreaks, especially at this time the Covid-19 outbreak, while the benefit of this model is to be used in creating new laws against disease outbreaks quickly, not only covid-19 but also other disease outbreaks, such as diarrhea, smallpox. Research suggests is the 'tree-regulation model' can be used as a hypothesis for other researchers to verify.