A Fe-based ionic liquid (Fe-IL) was synthesized directly by mixing 1∶2 mole ratio of 1-butyl-3-methylimidazolium(BmimCl) and FeCl3·6H2O at room temperature.The Fe-IL is of unstoichiometric ［Bmim］Fe0.9Cl4.7，and shows high hydrophobicity，thermostability and oxidation ability.Based on the new Fe-IL a non-aqueous wet oxidation desulfurization for hydrogen sulfide was investigated and developed.It is found that its sulfur capacity is 0.31 g·L-1 and the desulfurization efficiency is high，which depends on flow and concentration of hydrogen sulfide，reaction temperature and oxygen flow.Compared with wet oxidation desulfurization process，the new desulfurization process is of several advantages：no secondary pollutants produce，product water separates easy and control of pH value is not necessary.The new non-aqueous desulfurization process is not only of high desulfurization efficiency on the removal of hydrogen sulfide，but also of no secondary pollution.So，it could be expected that a green wet oxidation of desulfurization can be developed based on Fe-IL oxidation desulfurater.