NOVELTY - Xylose fermentation having enhanced conversion efficiency in lignocellulosic hydrolysates, comprises: obtaining raw material (11); mixing raw material with diluted sulfuric acid (12) solution to obtain mixed solution; boiling mixed solution and removing solution portion to obtain solid portion (13); adding solution having cellulase into solid portion to remove cellulose (14); separating solid portion (15) to obtain lignocellulosic material; and adding lignocellulosic material into solution having xylose to process fermentation with a yeast to obtain ethanol.    USE - The method is useful for xylose fermentation to obtain ethanol (claimed), which is useful as biofuel.    ADVANTAGE - The method: has enhanced conversion efficiency in lignocellulosic hydrolysates; improves a xylose conversion rate of 10%, thus achieving ethanol yield of more than 90%; and utilizes lignocellulosic material for a fast co-precipitation with yeast, thus making fermentation available in repeated batches while recycling the yeast.    DETAILED DESCRIPTION - Xylose fermentation having enhanced conversion efficiency in lignocellulosic hydrolysates, comprises: obtaining a raw material (11); mixing raw material with a solution of diluted sulfuric acid (12) to obtain a mixed solution, where the solution has the diluted sulfuric acid concentration of 1-3%, and a weight ratio of the raw material to the solution is 1:5-1:10; boiling the mixed solution and then removing solution portion of the mixed solution to obtain solid portion (13) of the mixed solution through a process of solid-liquid separation, where the mixed solution is boiled at 130-200 degrees C for 1-15 minutes; adding a solution having cellulase into the solid portion for removing cellulose (14), where the reaction is processed for 72 hours; separating the solid portion (15) from the solution to obtain a lignocellulosic material; and adding the lignocellulosic material into a solution having xylose to process fermentation with a yeast to obtain ethanol.    DESCRIPTION OF DRAWING(S) - The figure shows the flow chart of xylose fermentation to obtain ethanol.    Obtaining fiber material (11)    Mixing with diluted sulfuric acid (12)    Obtaining solid portion (13)    Removing cellulose (14)    Separating solid portion (15)