Abstract: The article substantiates public-private partnership (PPP) as an institutional and investment mechanism for restoring construction infrastructure of Ukraine amid warrelated destruction. The relevance of the topic is determined by the scale of infrastructure damage, chronic shortfalls in public financing, and the objective need to attract private capital to reconstruction processes. The purpose of the study is to reveal the theoretical essence of PPP, identify key directions and specifics of its application in the construction sector, and substantiate the authors’ approach to understanding PPP as a comprehensive mechanism combining investment, managerial expertise, technological modernisation, and risk distribution. The methodological basis includes systemic approach, structural-logical and institutional analysis, comparative method, synthesis of scientific sources, elements of scenario analysis, and table-graphical methods. The findings demonstrate that PPP represents a multi-dimensional mechanism for restoring construction infrastructure, encompassing concessions, life-cycle contracts, availability payments, joint activities, and guarantee and insurance instruments. Key directions of PPP application in residential, transport, social, industrial, and energy-efficient infrastructure are systematised. A risk distribution matrix between public and private partners is developed, covering construction, financial, demand-operational, military, corruption, environmental, and other risk types. The scientific novelty lies in substantiating PPP not merely as a financial tool but as a systemic mechanism of managerial, technological, and social transformation of recovery processes. The practical significance lies in the possibility of applying the proposed approaches by public authorities, territorial communities, and construction enterprises for preparing and implementing PPP infrastructure projects.