Project management is a complex systems engineering of multiple objectives. It is difficult to achieve maximum economic benefits through a single project management of schedule, funding, quality and personnel. We must take the road of comprehensive management. When introducing a project into operations and management, it is often easy to start with a single project in the departmental plan or budget, ignoring its systemic nature. Therefore, in order to make project management widely used in business management, we must first solve the problems of changing management system and management thought, improving the quality of managers and enhancing the information consciousness of all staff.