NOVELTY - Preparation of wood liquefied substance foamed material involves providing wood meal in a liquefying plant, adding a liquefier phenol and an acidic catalyst, stirring to prepare a wood liquefied substance, adding obtained product to the organic solvent in the dilution liquid, carrying out resin synthesis on the liquefied substance, removing organic solvent, adding wood liquefaction of alkali solution, obtaining wood liquefied substance resin, adding curing agent, foaming agent, catalyst and surfactant, obtaining resin mixture, heating, curing, cooling and foaming in drying oven.    USE - Preparation of wood liquefied substance foamed material (claimed).    ADVANTAGE - The wood liquefied substance foamed material is efficiently prepared.    DETAILED DESCRIPTION - Preparation of wood liquefied substance foamed material involves providing wood meal in a liquefying plant, adding a liquefier phenol and an acidic catalyst, stirring at 150-180 degrees C for 1-1.5 hours to prepare a wood liquefied substance, adding obtained product to the organic solvent in the dilution liquid, carrying out resin synthesis on the liquefied substance, performing vacuum filtration, fistilling filtrate at 50-70 degrees C, removing organic solvent, maintaining the temperature at 70-80 degrees C for 30-60 minutes, adding wood liquefaction of alkali solution at 40-60 degrees C for 20-40 minutes, obtaining wood liquefied substance resin, adding certain amounts of 10-20 wt.% curing agent, 1-5 wt.% foaming agent, 5-10 wt.% catalyst and surfactant, obtaining resin mixture, adding acid catalyst to the obtained mixture, stirring for 1-2 minutes, placing mixture in an oven at 40-60 degrees C for 30-50 minutes, heating at 80-100 degrees C, curing for 1-1.5 hours, cooling and foaming in a drying oven. The wood liquefied substance foamed material has apparent density of 0.11-0.28 g/cm3 and compression strength of 1.6-5.1 MPa. The molar ratio of formaldehyde solution and wood liquefaction is 1.3:1-1.5.