NOVELTY - A manufacturing apparatus (10A) of biomass organic liquefied substance has a primary injection unit (20), a mixing unit (30), a volatilization unit (40) and extraction unit (60). Injection unit supplies ground material of biomass and organic solvent. Mixing unit carries out mixing of ground material and solvent, and biomass is uniformly dispersed. Volatilization unit volatilizes water content of mixture maintained in low pressure at fixed temperature. Extraction unit removes dehydrated mixture, and organic liquefied substance is produced.    USE - Apparatus is used for manufacturing biomass organic liquefied substance used for biomass-containing composition (claimed).    ADVANTAGE - The apparatus enables manufacture of biomass organic liquefied substance having excellent quality and reduced residual water content.    DETAILED DESCRIPTION - A manufacturing apparatus of biomass organic liquefied substance has a primary injection unit, a mixing unit, a volatilization unit, and extraction unit. The injection unit supplies ground material of biomass and organic solvent. The mixing unit carries out mixing of ground material and solvent at fixed temperature in airtight condition, and biomass is uniformly dispersed. The volatilization unit volatilizes water content of mixture maintained in low pressure rather than the saturated vapor pressure at fixed temperature. The extraction unit removes dehydrated mixture, and biomass organic liquefied substance is produced. INDEPENDENT CLAIMS are included for the following:    (1) manufacturing apparatus of polymer composite, which has a secondary injection unit for injecting precursor of synthetic macromolecule, a mixing unit for mixing injected macromolecule and organic solvent, volatilization unit or volatizing solvent and water, and extraction unit for removing dehydrated mixture containing biomass dispersed in macromolecule; and    (2) biomass-containing composition, which contains the biomass organic liquefied substance in dispersed state.    DESCRIPTION OF DRAWING(S) - The drawing shows the sectional view of apparatus for manufacturing biomass organic liquefied substance. (Drawing includes non-English language text)    Apparatus (10A)    Injection unit (20)    Throttle valve (25)    Mixing unit (30)    Volatilization unit (40)    Extraction unit (60)