There are several reasons, according to which it is worth analyzing European administrative law. First, this is a rather new branch of law. Second, the European administrative law is treated in different countries from different legal traditions positions, consequently, any effort to unify the approach to it can provide a basis for a unified European administrative law model. Third, there are no works dedicated to the analysis of the phenomenon of the European administrative law in Lithuania. Therefore, this article deals (...) with the concepts of the European administrative law. It is stated that the comprehensive image of the European administrative law reveals three European administrative law concepts. The first concept of the European administrative law characterizes it as the European Union (hereinafter – EU) administrative law, the validity of boundaries of which can be based on three aspects – functional, institutional and procedural. The second concept of the European administrative law identifies it as the law of administrative cooperation., whereas the third concept allows the European administrative law to be seen as the law common to various public administrations of European countries – ius commune. The article focuses on the analysis of the above-mentioned three approaches and the EU set of administrative procedures as an instrument to promote the development of the EU administrative law. The author comes to the conclusion that the concept of the ‘European Administrative Law’ is broader than the concept of the ‘EU Administrative Law’. The European administrative law can be perceived not only as a part of law that establishes the EU administration’s administrative legal status, its’ activity principles, forms and methods, but also as a law of administrative cooperation between states, governmental and non-governmental organizations and various corporations, based on a wide range of multilateral treaties or conventions, which cross the limits of the EU. Moreover, the European administrative law can be understood as a law with common concepts, general principles characteristic to different European countries’ public administrations as well as a science, with the help of which diverse administrative legal systems of various countries could be compared. Taking into account the content of various working documents, the author draws the conclusion that for the further development of the EU administrative law the establishment of uniform operating rules for the EU administration in its’ relations with the society is of exceptional importance. There are a number of important reasons to develop the Law on administrative procedure of the EU. First, it is generally recognized that the EU needs common binding legislation that sets out clear operating rules of the EU administration in its’ relations with legal and natural persons, and that would increase the transparency of the EU administration and its’ accessibility to citizens. Second, the drafting of the law on administrative procedure of the EU lies in the legal framework as well; the importance of the article 298 of the Treaty of the Functioning of the European Union, the articles 41 and 42 of the Charter of Fundamental Rights of the EU as well as “soft” law (i.e. codes of good administrative behavior) are obvious here. (shrink)