Information used to manage investment projects, like most management information, requires collection, registration, accumulation, processing, storage and use. The article presents the author’s vision of the formation of an infological model of accounting and analytical support for investment project management, by building harmonious targeted flows of external and internal information based on the relationship of the external environment and data sources at the input and the need to inform society about the results obtained at the output, actively using for this toolkit of financial and managerial (operational and strategic) accounting, audit, analysis, taking into account the peculiarities of investment project management.