NOVELTY - Production of ethanol from saccharified wood type biomass, involves subjecting saccharified liquid containing hexose, yeast and culture medium, to fermentation, subjecting fermented liquid containing pentose, to secondary fermentation, separating the fermented liquid into solid and liquid, separating ethanol from supernatant liquid, recovering yeast by solid-liquid separation process, culturing the obtained yeast, and reusing the yeast as seed yeast in primary fermentation process.    USE - For producing ethanol from biomass raw material (claimed) such as timber, wood chips, grass, bagasse and straw.    ADVANTAGE - The method prevents the flow of gene recombinant microorganisms into waste liquid. Ethanol is efficiently produced and recovered.    DETAILED DESCRIPTION - Production of ethanol from raw material by fermenting saccharified liquid obtained by saccharifying wood type biomass, involves (a) primary fermentation process which involves subjecting liquid containing saccharified liquid having hexose, yeast and culture medium, to fermentation, (b) secondary fermentation process which involves subjecting fermented liquor (obtained from primary fermentation process) containing pentose, and culture medium, to fermentation, (c) solid-liquid separation process which involves separating the fermented liquor obtained from secondary fermentation process into solid and liquid, (d) ethanol separation process which involves separating ethanol from supernatant liquid obtained from solid-liquid separation process, (e) starter-culture process which involves receiving gene recombinant yeast capable of converting both hexose and pentose into ethanol, by solid-liquid separation process and culturing the obtained yeast to obtain seed yeast, and (f) providing the obtained seed yeast to primary fermentation process.    An INDEPENDENT CLAIM is included for an apparatus for producing ethanol from biomass raw material, comprising first fermenter enabling primary fermentation process, second fermenter enabling secondary fermentation process, solid-liquid separation unit for separating fermented liquor into solid and liquid, ethanol separation unit, starter culture tank for culturing gene recombinant yeast recovered from the fermented liquor, to obtain seed yeast, and return unit for providing seed yeast to the first fermenter.    DESCRIPTION OF DRAWING(S) - The figure shows the process of ethanol production. (Drawing includes non-English language text)