Provided is a stable aqueous adalimumab preparation that comprises a combination of a histidine buffer solution with a phosphate buffer solution. By using the histidine buffer solution together with the phosphate buffer solution, the stability of adalimumab can be improved.本發明藉由組合組胺酸緩衝液與磷酸緩衝液並且摻合,提供一種穩定之阿達木單抗水性製劑。藉由摻合組胺酸緩衝液及磷酸緩衝液,可提升阿達木單抗的穩定性。