To obtain a bagasse extract solution capable of being utilized for drinks, medical treatments, etc., by extracting water soluble fibers and active ingredients from bagasse, and to obtain a bagasse drink by adding the bagasse extract solution to one of various drinks.

This bagasse extract solution contains water soluble fibers obtained by the hydrolysis of hemi-cellulose, etc., and medicinally active products such as xylose, furfural, hydroxymethylfurfural, and xylo-oligo saccharide. The water-soluble fibers and the medicinally active products are obtained by subjecting the bagasse to a high pressure steaming treatment. The bagasse extract solution is added to either one of soft drinks, alcoholic drinks, medicinal drinks or health drinks to obtain a bagasse drink.