A method for displaying HbA1c measurement results is provided, which makes it possible to prevent overlooking a sample that exhibits an HbAlc value at a predetermined level different from a normal value, for example, a sample that exhibits a diabetic type. The method is a display method for displaying spectrum data as results of measurement of hemoglobin A1c (HbAlc) in a sample by separation analysis, and the method includes applying one of at least two different types of designs to a peak area for HbAlc in the spectrum data, according to an amount of HbAlc in the sample, or according to the amount of HbAlc and an amount of blood glucose in the sample.