In this paper, we proposed the key techniques and methods for the dynamic simulation of the aftershock sequence and the realization of the three-dimensional visualization. Then, using ArcEngine platform, we developed a three-dimensional visualization system which had functions such as data management, subject inquiry, topographic analysis, three-dimensional display and browse, dynamic simulation of the aftershock sequence. We applied the system to the emergency response of the M_S 7.2 earthquake in the China-Burma border region, and the Yingjiang, Yunnan, M_S 5.8 earthquake in 2011. The results given by the system such as dynamic simulation of the aftershock sequence, display of the simulated three-dimensional topography, preliminary estimation of the direction of earthquake-influenced field, and the macro-epicenter, were proved correct.