This paper states the definition of evolutionary dynamic of project organization, finds out the dynamic factors of evolution of the project organization basing on talks, questionnaires and analysis, constructs the diagram of dynamic factors, basing on which a three-dimension graph of the interaction between dynamic factors is constructed, and a model about the interaction process between dynamic factors basing on Haken Model is built and a analysis about the process is made. The author concludes it’s an effective way to make the organization change from criticality to orderly state faster and the evolution of the organization by means of designing dynamic factors rationally, dynamic construction of the relationship of competition and cooperation and enhancing the rational actions the behavior subjects.