NOVELTY - Use of albiflorin is claimed for preparation of medicine for enriching blood.    USE - The albiflorin is useful for preparation of medicine in form of pill, capsule, granule, tablet, oral liquid or injection for enriching blood and treating blood disorders (all claimed).    ADVANTAGE - The method provides high yield of albiflorin of high purity, is feasible, does not require performing complicated operations, and enables to perform extraction with controlled use of organic solvent in environmentally-friendly manner.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of the albiflorin, which involves (a) extracting radix paeoniae alba using water or alcohol as solvent, concentrating obtained liquid extract, and filtering concentrated liquid to obtain liquid extract filtrate, (b) purifying the extract by loading the extract onto macroporous resin column, eluting the column using 0-20% alcohol as solvent, discarding eluent, again eluting the column using 30-70% alcohol as solvent, collecting eluate, concentrating the eluate, and drying concentrate to obtain purified product, (c) dissolving the purified product in water or alcohol, adding alumina to obtained mixed solution in an amount which is 2-8 times with respect to total weight of the solution, mixing the solution uniformly, eluting the solution using eluent, discarding eluent, and collecting eluate to obtain purified liquid, (d) recovering solvent from the purified liquid, purifying the liquid using activated carbon, and drying purified liquid, (e) adding eluent to obtained dried purified substance in an amount which is 8-20 times with respect to total weight of the purified substance, loading obtained solution onto column packed with silica gel, eluting the column using eluent, collecting fractions, performing thin-layer inspection, collecting the fractions containing paeoniflorin, fractions containing paeoniflorin and albiflorin, and fractions containing albiflorin, recovering all solvents, dissolving collected fractions in water, filtering solution, and drying filtrate to obtain paeoniflorin, mixture of paeoniflorin and albiflorin, and albiflorin, and (f) repeating the above-mentioned step (e) with the mixture of paeoniflorin and albiflorin.