This article highlights current issues of effectiveness and efficiency of the public administration system. Using systemic and synergetic approaches, methods of analysis and synthesis, induction and deduction, comparative analysis it is established that the effectiveness of management is a result compared with the cost of achieving it (they include not only direct costs of management, but also implementation management decisions). At the same time, the tools of public administration can be divided into four types: organizational structures; belief; rules; financial resources, and their capabilities – two: external, which include the legal framework, leadership and resources, and internal in the composition of people, processes and strategies. At the same time, its effectiveness should be assessed in two ways: on the one hand, by assessing the available opportunities and the extent to which they are used to achieve organizational results (socalled internal efficiency), and on the other – by assessing the final achievements (external). The organizational results of public administration should be considered in two aspects. On the one hand, it is the implementation within the legal framework in accordance with the chosen strategy and under a certain guidance of such opportunities as resources, which means their allocation in accordance with the goals and objectives of the organization; processes and structures, which means their organization to achieve goals and objectives; and people, is the change of certain human factors, the emergence or resolution of existing conflicts, and so on. At the same time, the criteria for the effectiveness of public administration: the purposefulness of the organization and functioning of the public administration system; spending time on management issues and management operations; the state of functioning of the public administration system, its subsystems and other organizational structures; the complexity of the organization of the subject of public administration, its subsystems and units; the cost of maintaining and ensuring the proper functioning of such a management system. Therefore, based on the most common interpretation of the concept of efficiency, it is considered as a result compared with the cost of obtaining it. At the same time, the efficiency of management is a relative characteristic of a particular social governing system, reflected in various indicators that have both quantitative and qualitative features, the achievement of which is especially important in the development of modern civilized system market relations in modern Ukraine and its fustified relentless European integration aspirations.