A new dual catalyst bed system with Na2WO4/Mn/SiO2 in the first layer and Co-La/SiO2 in the second layer has been applied in the conversion of methane to ethylene and syrigas simultaneously. The effects of flow velocity and the ratio of methane to oxygen on the catalytic performance were investigated. The results showed that, when F = 150 mL/min, CH4/O-2 = 2.5. the amount of Na2WO4/Mn/SiO2 was 0.27 g in the first bed, and that of CO-La/SiO2 was 0.1 g in the second bed, the expected mixture of C2H4/H-2/CO = 1/1/1 with a total yield of 20.6% for C2H4 + CO was achieved, which could be directly used as a feedstock to produce propanal by hydroformylation of ethylene. The new process provides an efficient method for the utilization of CO2, H2O, and thermicity. The Co-La/SiO2 catalyst on the second layer was found to possess a catalytic perlornlance for both partial oxidation of methane and oxidative coupling of methane reactions.