The paper focuses on risk formation and evolution of huge infrastructure projects in the context of complex dynamics and stakeholders gaming by simulation analysis. Firstly,it analyzes the origin of risk factors and their interactive and combinational relations. Then interaction evolution mechanism of risks among different levels is expounded.Lastly,it builds a model of Three Dynamic Evolution and measures the sensibility of three powers through simulation analysis. The study and analysis proves that the risk of huge infrastructure projects is the result of the interaction among environmental ...