NOVELTY - The hydrocarbon which contains organosulfur-compound is de-sulfurized by oxidizing agent in static-type mixer, and modified to obtain hydrogen.    USE - For manufacturing hydrogen used for fuel cells.    ADVANTAGE - The method efficiently provides hydrogen.    DETAILED DESCRIPTION - The hydrocarbon is chosen from liquid petroleum gas, town gas, naphtha, gasoline, kerosene, light oil, fuel oil, asphaltene, oil-sand oil, coal liquid, petroleum type, heavy oil, shale oil, gas to liquid, waste-plastic oil and bio-fuel. The oxidizing agent is two or more type chosen from oxygen, air, nitrogen tetroxide, ozone, chlorine, bromine, meta-sodium periodide, potassium dichromate, potassium permanganate, chromic acid anhydride, hypochlorous acid, hydrogen peroxide, peracetic acid, hydrogen peroxide and acetic acid, performic acid, the hydrogen peroxide and formic acid, meta-chloro perbenzoic acid, hydrogen peroxide and meta-chloro perbenzoic acid, fault chloroacetic acid, hydrogen peroxide and chloroacetic acid, fault dichloroactic acid, hydrogen peroxide and dichloroactic acid, fault trichloroacetic acid, hydrogen peroxide and trichloroacetic acid, fault trifluoroacetic acid, hydrogen peroxide and trifluoroacetic acid, fault meta-sulfonic acid, hydrogen peroxide and meta-sulfonic acid, hydrogen peroxide and salicylic acid, persulfuric acid, and hydrogen peroxide and sulfuric acid. The solvent in the solvent extraction is 2 or more groups chosen from acetonitrile, propionitrile, butyronitrile, nitromethane, nitroethane, nitro propane, nitrobenzene, dimethyl sulfoxide, N,N'-dimethylformamide, N,N'-dimethylacetamide, N-methyl pyrrolidone, trimethyl phosphoric acid ester, triethyl phosphoric acid ester, hexamethyl phosphoric acid amide, phosphorane, methanol, ethanol, propanol, butanol, water and acetone. The adsorption agent contains porous inorganic acid compound. The porous inorganic acid compound is 2 or more types chosen from silica, alumina, silica-alumina, zeolite, titania, zirconia, magnesia, silica-magnesia, clay, diatomaceous earth, activated carbon, and insoluble synthetic resin. The desulfurizing agent is catalyst having porous support and which contains nickel, silver, chromium, manganese, iron, cobalt, zinc, lead, iridium, platinum, ruthenium, rhodium, and gold. The support component of modification catalyst is 2 or more types chosen from manganese oxide, cerium oxide, and zirconia.