Summary: 1. Introduction. – 1.1. Ontological foundations of the emergence of scientific interest. – 1.2. Research methodology and source base. – 2. Security as a Sphere of Public Administration under the Legal Regime of Martial Law. – 3. Peculiarities of the Institutional Structure of Local Administration under the Legal Regime of Martial Law. – 4. Changes in the System of Managing Budget Funds under the Legal Regime of Martial Law. – 5. Application of Certain Restrictions in the Order of Introducing Measures of the Legal Regime of Martial Law. – 6. Conclusions.