Current trends in social and economic development in Ukraine, which are characterized by an increase in interest in boosting investment revenues, have made it necessary to search for new approaches to organizational support of state management of investment projects. This problem emerged due to the fact that the post-war restoration of territories requires a holistic theory of the formation, management and development of investment activities at various levels (state, regional), which is currently absent. The difficulty of solving this problem largely lies in the limited opportunities for domestic government savings, the inability of investors to compensate for the lack of investment in the real sector of the economy due to the low profitability of enterprises and a high degree of risks. Based on this, the purpose of the study is to develop organizational support of state management of investment projects. Scientific works of domestic and foreign authors, separate regulatory provisions and instructions served as the theoretical basis for this paper. The generalization of different scientific points of view regarding the organizational support of state management of investment projects allowed the author to come to the conclusion that there is no single point of view regarding the interpretation of this category, which is why the author's interpretation is proposed. The detailed concept expands the existing scientific basis taking into account current trends and allows accomodating the interests of all participants in the investment process. Based on the principles of monitoring, an architecture of organizational support of state managment of investment projects has been developed, which includes information, analytical and communication components, making it possible to form a comprehensive system for monitoring changes. The expediency of using the Microsoft Project investment project management applied software package, the advantage of which is its relative ease of use, availability, and ability to correct resource deviations, is substantiated. Theoretical research was practically tested in the framework of teaching the discipline "State mechanisms for managing investment programs and projects". The practical value of the results obtained lies in the fact that they are the basis for making managerial decisions in the development of national and regional projects and programs for investment and social and economic development of regions. The material can be useful for scientists, employees of government agencies, industry associations, university teachers, postgraduates and students