NOVELTY - A method involves obtaining steam blasting products from Pennisetum purpureum Schum, washing the products to obtain fibers, and fractionating fibers to obtain long and short fibers. Auto-catalyzed ethanol is pulped using the longer fibers, and the obtained pulp is bleached to obtain a paper pulp. Fermentation solutions containing cellulase are obtained using short fibers. The short fibers, the fermentation solutions and yeasts are saccharified and fermented simultaneously to obtain fuel ethanol and fermentation residues. The residues are dried to prepare fuels for biomass power generation.    USE - Method for joint production of fuel ethanol, electricity and paper pulp by fractionation conversion of Pennisetum purpureum Schum.    ADVANTAGE - The method utilizes minimum resources and can be implemented in an economical manner. The fuel ethanol produced by the method, has high biomass accumulation and high heat value.    DETAILED DESCRIPTION - A method involves performing steam blasting treatment on Pennisetum purpureum Schum for cutting Pennisetum purpureum Schum into sections by using a steam blasting device to obtain steam blasting products. The steam blasting products are washed with water to obtain fibers and water washing solution containing degraded hemicellulose. Oligoxylose is obtained by separating and purifying the water washing solution. The fibers are fractionated and carded to obtain long fibers and short fibers. An auto-catalyzed ethanol is pulped by using the obtained longer fibers. The obtained pulp is bleached to obtain a paper pulp and alcohol soluble lignin. Fermentation solutions containing cellulase are obtained by taking short fibers as the fermentation substrate of Trichoderma viride. A simultaneous saccharification and fermentation are performed on the short fibers, the fermentation solutions containing cellulase and yeasts to obtain fuel ethanol and fermentation residues. The fermentation residues are dried to prepare fuels for biomass power generation.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating a method for joint production of fuel ethanol, electricity and paper pulp.