Provided is an organ preservation solution for use in transplantation, which is capable of effectively preventing the occurrence of ischemia-reperfusion injury. Prepared is an organ preservation solution comprising a mixture of the following components: (a) potassium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate, L-ascorbic acid, L-ascorbic acid phosphate ester, and D-glucose (b) potassium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate, L-ascorbic acid, L-ascorbic acid phosphate ester, glycine, and D-glucose (c) potassium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate, L-ascorbic acid, L-ascorbic acid phosphate ester, L-cysteine, glycine, and D-glucose or (d) potassium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate, L-ascorbic acid, L-ascorbic acid phosphate ester, L-cysteine, glycine, an iron compound, and D-glucose.