Abstract: In this paper，the research progress of synthesis gas preparation by catalytic conversion of methane in the presence of oxygen is summarized. The authors’ work in preparing syngas form methane in the presence of oxygen is introduced. Catalytic partial oxidation (CPO)，autothermal CO2 reforming (ATR-CO2)，autothermal H2O reforming (ATR-H2O) and triple-reforming of methane are reviewed. The achievements in catalyst，reaction mechanism and process conditions are also discussed. The research focus and commercial application of catalytic conversion of methane in the future are also prospected.