Co and Ni catalysts supported on Al2O3 for partial oxidation of methane producing hydrogen were synthesized using impregnation to incipient wetness. The activities of these catalysts for the partial oxidation of methane was investigated at 1 atm and CH4/O2=2.0 in the temperature range of 450~650 ℃. The reaction activity of Ni/Al2O3 and Co/Al2O3 catalysts with different loading was investigated. And the beneficial effects of Ni addition to Co/Al2O3 and the promotional effects of Ce and La addition to Ni/Al2O3 and Co/Al2O3 were investigated. These catalysts were characterized by XRD and SEM/EDX. Comparing catalyst loadings, 10 wt% Co and 10 wt% Ni were found to be optimal at the experimental conditions. The 10 wt% Ni/Al2O3 and 10 wt% Co/Al2O3 catalysts in partial oxidation of methane showed CH4 conversions and CO selectivity close to the thermodynamic equilibrium levels, but showed lower H2 selectivity than equilibrium level. The addition of Ni to Co/Al2O3 exhibited higher H2 selectivity but beneficial effect was not observed in the CH4 conversion. Addition of Ce to Co/Al2O3 and addition of La to Ni/Al2O3 improved the CH4 conversion level and H2 selectivity.