Abstract: The scene simulation of crowd behavior for strategic decision-making need to process large-scale data calculation and graph rendering. So, it is difficult to perform this simulation with a personal computer. In this paper, firstly, the collectivity technical project of this kind simulation is constructed. Secondly, the design of how to create the three-dimension virtual persons model is discussed. Then, how to catch the persons behaviors and the bodys actions is described detailedly and the database of persons behaviors and the bodys actions is created. Subsequently, the methods of how to describe the whole scene effect of crowd behavior simulation with the platform of Geofusion and how to render the living scene effect of crowd behavior simulation with OpenGVS are fully and accurately proposed. Finally, applying the proposed crowd behavior simulation method, the scene simulation of crowd behaviors acquires favorable effect. This makes the strategic decision-maker more clearly understand the war actions influence on crowd of community and know the degree of influence which the war brings on. It can supply the technique and information for strategic decision-maker. So this paper has important significance for improving the rationality and veracity of strategic decision-making.