Hydrogen, as a sustainable and clean energy, has become the center of public attention. The technology about hydrogen is developing fast every year. On the other hand, there are still many problems upon the practical use of hydrogen. In this paper, we propose the scenario of the diffusion of the fuel cellvehicle (FCV). In consideration of car makers, consumers and government, we built up a social network using multi-agent simulation and tried to figure out the guidelines for each agent in the network.