The present paper is the preprint of the chapter on customs legislation that is to be a part of the book "The Introduction to Ukrainian Law." The Customs Law is a complex branch of law, a set of legal norms regulating social relations that arise on the movement of goods and means of transport through the customs frontiers. Primarily, the basis of this complex brunch of law is composed of administrative law rules. The important peculiarity of modern customs law is binding with global standards emerged from multilateral agreements and regulations of international organisations. paper provides the general overview of the Customs Law of Ukraine including such issues as the main sources and actors, the principles, the customs territory, customs regimes, general rules for customs clearance, etc.