In conditions of transformation economy the issue of effective management of economic systems, including IT projects, becomes more important. Tools and techniques which were used earlier cannot be applied in the new realities. In order to improve the quality of IT project, the authors proposed to create an agent-dynamic model of IT project management as a complementary tool in decision-making, planning, monitoring and controlling of the project. It is based on the project life cycle stages of international project management standard PMBoK by Project Management Institute. As a tool for formalizing of IT project processes were used UML diagrams. Thus, as a result of this research, the conceptual basis for the creation of agent-dynamic model of IT project was formed, which reveals the principles of modeling of agents in system-dynamic environment as a complex interaction of internal and external actors of IT project, due to the rules defined in project management plan, at different stages of the project life cycle, taking into account the system development life cycle.