The hydrogenation of CO2 was investigated over a Rh catalyst prepared from an amorphous Rh-20/Zr-80 alloy. After the reaction, the catalyst was regenerated by oxidation in air and reduction in H-2. It was observed that the reaction activity increased with the repetition of regeneration. We also prepared the Rh/ZrO2 catalyst by the conventional impregnation method. The difference in the turnover frequency between the alloy-precursor catalyst and the conventionally prepared catalyst was small. Far the alloy-precursor catalyst, however, the conversion and CH4 selectivity were stable at 723 K, whereas the conversion and CH4 selectivity decreased with time-on-stream even at 673 K for the catalyst prepared by the conventional impregnation method.