▎ 摘　　要

NOVELTY - Preparing 2,5-furandimethanol by biomass sugar comprises (a) hydrolyzing biomass sugar into 5-hydroxymethylfurfural in the aqueous-organic two-phase solvent system through the action of solid acid catalyst and dehydration promoter, extracting 5-hydroxymethylfurfural in situ, then transferring from the aqueous phase to organic phase, and separating from oil and water to obtain organic solvent rich in 5-hydroxymethylfurfural, and (b) introducing hydrogen into organic solvent rich in 5-hydroxymethylfurfural, and converting into 2,5-bis(hydroxymethyl)furan under the action of hydrogenation catalyst. USE - The method is useful for preparing 2,5-furandimethanol by biomass sugar. ADVANTAGE - The method: can obtain the target product with high yield; and can conforms to the concept of green and environmental protection.