Abstract: Welding of high manganese steel to high carbon steel is difficulty because there are so many difference between these steels such as chemical,physical and mechanical properties respectively. Each weld ability of high manganese steel and high carbon steel was examined through the study in paper I and paper Ⅱ. By the microstructure analysis, SEM analysis and energy depressive analysis of welded joint,the welding method of high manganese steel to high carbon steel was determined. The method supplies particular welding technology. It is studied in the paper Ⅱ to weld directly or with an intermediate layer between two kinds of steel. Then the best welding technology was worked out.