NOVELTY - A comprehensive method of extraction and utilization of oil palm empty fruit bunches comprises preliminary handling of raw material, shivering and performing steam extrusion; performing lignin extraction or leaching process through chemical reaction and vacuum filtration; saccharifying cellulose and hemicellulose through pre-evaporation, and hydrolyzing with diluted sulfuric acid; fermenting centrifuge liquid with bacteria; and adding solid enzyme to centrifuged crude polysaccharide for fermentation, and stirring.    USE - Comprehensive method of extraction and utilization of oil palm empty fruit bunches (claimed).    ADVANTAGE - The water used is in close circuit and is fully recycled. The oil and fat which are dissolved in the recycled water circuit can also be fully recovered. The residue can be graded as animal feed, thus making the whole production produce zero waste.    DETAILED DESCRIPTION - Comprehensive method of extraction and utilization of oil palm empty fruit bunches comprises:    (A) preliminary handling of raw material, shivering and performing steam extrusion;    (B) performing lignin extraction or leaching process through chemical reaction and vacuum filtration;    (C) saccharifying cellulose and hemicellulose through pre-evaporation, hydrolyzing with diluted sulfuric acid, neutralizing with sodium hydroxide, potassium hydroxide/ammonia, filtering filtrate in constant ratio of diluted sulfuric acid, stirring and neutralizing (pH at 7) and filtering further, where final filtrate after 2 times acidification, neutralization and filtration is then centrifuged; fermenting centrifuge liquid with bacteria at which fermented liquid is further purify with solvent distillation column to obtain ethanol at purity 90%, where ethanol is further purified in solvent refining column to convert into 99.5 % purity; pumping filtrate produced from first filtration after mixing cellulose and hemicellulose with diluted sulfuric acid into neutralization vessel where pH is maintained at 7 and then separated by centrifuge to obtain crude polysaccharides; and adding solid enzyme to centrifuged crude polysaccharide for fermentation, stirring under 30 degrees C, where fermented liquid discharged is then filtered, centrifuged and concentrating to produce refined polysaccharides.    The oil palm empty fruit bunches include empty fruit bunches, oil palm fronds, monocarp fibers and oil palm shell.