NOVELTY - Sugar is manufactured by successively performing boiling process (S1) which adds cellulose biomass to water and boils water with cellulose biomass, cooling process (S2) which cools boiled 1st liquid mixture, 1st decomposition process (S3) which hydrolyzes 1st liquid mixture by adding hydrolase to cooled 1st liquid mixture and stirring at 30-50 degrees C, separation process (S4) which separates 1st liquid mixture into water-soluble fraction and water-insoluble fraction, and contact process (S5) which makes water-soluble fraction in contact with adsorption carrier.    USE - Manufacture of sugar used for producing ethanol and lactic acid (all claimed).    ADVANTAGE - Sugar can be easily manufactured from cellulose biomass, cellulase activity inhibitor can be completely removed, and usage amount of cellulase can be reduced.    DETAILED DESCRIPTION - Sugar is manufactured by successively performing boiling process (S1) which adds cellulose biomass to water and boils water with cellulose biomass, cooling process (S2) which cools boiled 1st liquid mixture, 1st decomposition process (S3) which hydrolyzes 1st liquid mixture by adding hydrolase to cooled 1st liquid mixture and stirring at 30-50 degrees C, separation process (S4) which separates 1st liquid mixture into water-soluble fraction and water-insoluble fraction, contact process (S5) which makes water-soluble fraction in contact with adsorption carrier and obtains purified water-soluble fraction, and 2nd decomposition process (S6) which hydrolyzes purified water-soluble fraction by adding purified water-soluble fraction to water-insoluble fraction, producing 2nd liquid mixture, and stirring 2nd liquid mixture at 30-50 degrees C. Contact process involves excluding cellulase activity inhibitor from water-soluble fraction by contacting water-soluble fraction and adsorption carrier and allowing inhibitor to adhere to carrier. INDEPENDENT CLAIMS are included for:    (1) manufacture of ethanol which involves adding yeast to sugar and biodegrading sugar; and    (2) manufacture of lactic acid which involves adding lactic acid fermentation microbe to sugar and fermenting sugar.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart of the manufacturing method of sugar. (Drawing includes non-English language text).    Boiling process (S1)    Cooling process (S2)    1st decomposition process (S3)    Separation process (S4)    Contact process (S5)    2nd decomposition process (S6)