The catalytic activity of ZnO 1D nanorods that were impregnated with silver by the classic impregnation technique was studied in the steam reforming of methane for H2 production. These Ag/ZnO 1D nanorods catalysts showed good catalytic activity on the steam reforming of methanol for H2 production. Among these catalysts, the sample with small Ag particle size showed the best performance in methanol conversion than on the catalyst with big Ag particle size. Good stability during the reaction was observed on the 1.5 Ag/ZnO 1D sample. The catalytic activity observed on the ZnO 1D catalyst occurred in the edge sites rather than in the rim sites. H2 yield reached the value of 2.48 in the first cycle of the reaction and increased up to 2.78 in the second cycle of the reaction at 400°C, which was very close to the theoretical one. This is an abstract of a paper presented at the AIChE 2010 Spring National Meeting (San Antonio, TX 3/21-25/2010).