NOVELTY - Wood processing residue raw material is subjected to pretreatment, crushed, particles having size of 5 mm or less are dried, hydroxymethyl cellulose modified-urea phenol resin binder is sprayed on the resultant product and subjected to thermoforming. The resultant product is subjected to carbonization process by predrying, and carrying out high-temperature drying, precarbonizing and carbonization-sintering. The carbonized product is cooled, and subjected to post-processing by cooling again using air cooler, to obtain wood charcoal. The resultant product is packaged and stored.    USE - Preparation of wood charcoal (claimed).    ADVANTAGE - The method enables simple and economical preparation of wood charcoal having excellent absorption and desorption capacity and strength.    DETAILED DESCRIPTION - Raw material is subjected to pretreatment by sorting wood raw materials, removing impurities and classifying processing residues based on shape. The processing residues are crushed, screened, particles having size of 5 mm or less are supplied into warehouse, and particles having size of more than 5 mm are crushed to size of 5 mm. The particles having size of 5 mm or less are dried by adding to feed tank by feeder conveyor, adding to cylinder drum dryer from feed tank, heat exchanging with hot air and reducing moisture content to 8-12% at 90-100 degrees C for 20-30 minutes. Then, hydroxymethyl cellulose modified-urea phenol resin binder is sprayed on the resultant product with coating amount of 80-100 g/m2. The resultant product is subjected to thermoforming by adding to rod-forming machine, heating at 180 degrees C or more, pressing using pressing machine at pressure of 6-18 MPa, molding at 150-200 degrees C such that the obtained bar has density of 1.4-1.5 g/cm3, length of 2300-2500 mm, width of 1100-1300 mm and thickness of 40-60 mm and cutting to a length of 300-500 mm, width of 150-250 mm and thickness of 30-70 mm. The resultant product is subjected to carbonization process by adding obtained bar to carbonization furnace, predrying at 95-100 degrees C for 3-4 hours at a rate of 2-5 degrees C/minute, such that moisture content is reduced to 5-7%, carrying out high-temperature drying from 95-100 degrees C to 150 degrees C at a rate of 1-3 degrees C/minute for 4-5 hours, such that moisture content is reduced to 1-3%, precarbonizing by increasing temperature to 280 plus minus 20 degrees C at a rate of 1-3 degrees C/minute for 9-10 hours, and carrying out carbonization-sintering by increasing temperature to 500-600 degrees C at a rate of 1-3 degrees C/minute at for 4-8 hours. The carbonized product is cooled to 50-60 degrees C by natural cooling for 24-48 hours, and subjected to post-processing by cooling again using air cooler and reducing temperature to room temperature, to obtain wood charcoal. The resultant product is packaged and stored. The carbonization furnace is provided with a fan, and 0.5 m3/kg air is introduced through carbonization furnace fan during carbonization.