The development of the free movement in the European Union area of all persons as European Union citizens and citizens of the third countries are closely related to the implementation of the Schengen Information System and the Schengen visa. If the European Union is the important member of the world space so studying of these processes in the European Union frame is very actually. The article «The Schengen Information System and the Schengen visa as the important component of the free movement of the persons in the European Union» is devoted to the analysis of the law formation and development of the Schengen Information System in the European Union. It is concentrated to the creation and to the main stages of its development. The author is based on the international law sources showing the continuity in solutions of these issues on the European area In the article is paid attention to the main differences of the new Schengen Information System (SIS II) and motive of its adopting In the article is analyzed «The Common Council Instruction on visas for the diplomatic missions and consular posts» and the types of the Schengen visa.