PROBLEM TO BE SOLVED: To provide highly absorbable L-ascorbic acid preparation.SOLUTION: Provided is a preparation for oral administration of L-ascorbic acid including L-ascorbic acid, L-ascorbic acid coated with a water-insoluble material and/or fatty acid ester of L-ascorbic acid, where the weight ratio of the free L-ascorbic acid and the L-ascorbic acid contained in the coated L-ascorbic acid and/or L-ascorbic acid fatty acid ester is in the range of from 1:2 to 3:2.