NOVELTY - Distillation processing of hydrogen iodide raw water solution containing iodine, hydrogen iodide and water, is carried out. Iodination hydrocracking of obtaining hydrogen, iodine, non-decomposed hydrogen iodide, is carried out, to obtain decomposition mixture. Iodine and hydrogen iodide are removed from decomposition mixture to obtain hydrogen mixture containing hydrogen and residual hydrogen iodide. Hydrogen iodide removal is carried out to separate hydrogen. Separated hydrogen is washed with water, to obtain pure hydrogen.    USE - For manufacture of hydrogen.    ADVANTAGE - Hydrogen iodide in hydrogen is removed easily and conveniently, without making cryogenic conditions and without using large amount of water. Highly purified hydrogen is produced continuously.    DETAILED DESCRIPTION - Distillation processing of hydrogen iodide raw water solution containing iodine, hydrogen iodide and water, is carried out. Subsequently, hydrogen iodide distillation process which carries out separation acquisition of hydrogen iodide, is carried out. Hydrogen iodide is decomposed into hydrogen and iodine. Iodination hydrocracking process of obtaining hydrogen, iodine, non-decomposed hydrogen iodide, is carried out, to obtain decomposition composition. The decomposition composition is cooled. Iodine and hydrogen iodide are removed from the decomposition composition to obtain hydrogen mixture containing hydrogen and residual hydrogen iodide. The hydrogen mixture is contacted with hydrogen iodide raw water solution containing hydrogen iodide, iodine and water. Hydrogen iodide removal process is carried out to separate hydrogen. The separated hydrogen is washed with water, to obtain pure hydrogen.    An INDEPENDENT CLAIM is included for manufacturing apparatus of hydrogen.    DESCRIPTION OF DRAWING(S) - The figure shows the schematic diagram of manufacturing apparatus of hydrogen. (Drawing includes non-English language text)    Hydrogen iodide distillation unit (A)    Iodination hydrocracking unit (B)    Iodine removal unit (C)    Hydrogen iodide removal unit (D)    Hydrogen washing unit (E)    Hydrogen iodide recovering unit (F)