A sterilized peritoneal dialysis solution comprising an acidic first liquid containing icodextrin and a second liquid containing 300 to 3,000 mg / L L-histidine and a pH adjusting agent, the first liquid Does not contain a pH adjuster, the pH of the first liquid after sterilization is 4.0 to 5.3, the pH of the second liquid after sterilization is 6.5 to 8.0, and the pH after sterilization is A peritoneal dialysis solution having a pH of 6.5 to 7.5 after mixing the first solution and the second solution.イコデキストリンを含有する酸性の第1液と、300~3,000mg/LのL-ヒスチジン及びpH調整剤を含有する第2液とからなる滅菌された腹膜透析液であって、前記第1液には、pH調整剤を含有せず、滅菌後の前記第1液のpHが4.0~5.3、滅菌後の前記第2液のpHが6.5~8.0、滅菌後に第1液と第2液を混合した後のpHが6.5~7.5である腹膜透析液。