The volt ampere characteristics of electrolytic oxidation of Datong Jinhuagong coal was studied and the most suitable electrolysis system was determined The results show that H 2SO 4 H 2O system is the ideal electrolysis system for the coal oxidation The test oxidation conditions in the present study is that the concentration of coal slurry is 20?g/L, the concentration of H 2SO 4 is 1?mol/L, the catalyst is FeSO 4 and the oxidation temperature is 60?℃