Optimization of syngas production by non-catalytic partial oxidation of coke oven gas was carried out on a self-designed reactor. Tests were carried out to study the effects of volute and partial oxidation burners on the body the distribution of temperature and conversion. It was found that the partial oxidation burner can show desirable temperature distribution compared with the volute burner, under pure oxygen condition. As a result, it can improve the methane conversion and low oxygen consumption. Methane content in product gas can be reduced from 17 to 1%. The optimum operation conditions were: oxygen flow 9 m(3)/h, oxygen-coke oven gas 0.24-0.26, upper temperature of rector 1200-1250 degrees C, and outlet temperature 960-1000 degrees C.