NOVELTY - The biomass processing apparatus (100) has pressure maintenance unit (210) that maintains lignocellulosic biomass to the pressure exceeding the atmospheric pressure. A pressurizing unit (130) pressurizes the lignocellulosic biomass currently maintained by the pressure which exceeds atmospheric pressure by the pressure maintenance unit. A dwelling storage tub (120) accommodates the pressurized lignocellulosic biomass and water of liquid state of the pressure exceeding the atmospheric pressure. An extraction unit (140) extracts the liquid from the dwelling storage tub.    USE - Processing apparatus for lignocellulosic biomass e.g. wood type biomass such as sweet sorghum bagasse used in manufacture process of sugar liquid which is used in manufacture of ethanol (all claimed) e.g. bioethanol or biomass ethanol. Can also be used in timber, paper, sawdust, bark, straw, herbal biomass e.g. pampass grass, agricultural type biomass e.g. stalk and leaves of bagasse, straw, chaff and vegetable.    ADVANTAGE - The biomass is hydrothermally treated continuously to manufacture sugar liquid and ethanol. The apparatus is provided with simple structure.    DETAILED DESCRIPTION - The apparatus has pressurizing unit whose inlet port (132a) is connected to exit (132b) of the dwelling storage tub of biomass process unit. The temperature of the water is set to exceed 100 degrees C. INDEPENDENT CLAIMS are included for the following:    (1) a sugar liquid manufacturing method involves decomposing polysaccharide of lignocellulosic biomass-derived to manufacture the sugar liquid; and    (2) a ethanol manufacturing method involves fermenting the sugar liquid to manufacture ethanol.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the processing apparatus of biomass. (Drawing includes non-English language text)    Biomass processing apparatus (100)    Dwelling storage tub (120)    Pressurizing unit (130)    Inlet port of pressurizing unit (132a)    Exit of dwelling storage tub (132b)    Extraction unit (140)    Pressure maintenance unit (210)