The military actions in Ukraine not only led to the destruction of critical infrastructure (hereinafter referred to as CI), especially the energy and transport sectors, but also actualized the need to ensure its security, immediate restoration to provide basic services to the population in various areas. Local public authorities, operators of CIs, as well as the central government of the country and international partners are involved in the processes of immediate restoration of CI facilities in Ukraine, which, on the basis of cooperation, provide organization, planning, and financing of its reconstruction. Initiatives of the national government to establish cooperation testify to the existing prospects for the long-term development of CI. Therefore, the modernization and construction of new CI facilities takes place on the basis of partnership, which contributes to the attraction of human, financial, material and technical and other types of resources, the establishment of cooperation mechanisms and the interaction of public administration subjects of various institutional levels. Transport and energy infrastructure requires the largest financial investments and efforts of various subjects - participants in the recovery process, because it ensures the provision of basic public services for the population. Taking into account the need for long-term development of CI facilities in various sectors of the economy, the National Recovery Council of Ukraine presented the «Project Recovery Plan». This document provides for the implementation of programs for the restoration of the most priority sectors using a project approach (logistics, infrastructure, including educational, social, healthcare infrastructure and other sectors). For long-term planning of the reconstruction of critical infrastructure, proposals are made for the practical implementation of sectoral and functional approaches in public administration in the relevant field. This position corresponds to the provisions of the Law of Ukraine «On Critical Infrastructure» № 1882-IX of 01.01.2024, providing for the construction and reconstruction of CI facilities according to the importance of their functions for consumers of services in various infrastructure sectors. In general, the study of public administration in the field of reconstruction of various sectors of the economy, as well as the analysis of the growth dynamics of Ukraine’s GDP in 2021-2023 according to the production method, indicates the strength of various types of economic activity.