A sample imaging apparatus comprising: an imaging section for imaging a stained sample including a stained cell to generate a cell image relating to the stained cell included in the stained sample; and a staining abnormality detector for detecting an abnormality relating to staining of the stained sample on the basis of the cell image generated by the imaging section, is disclosed. A sample imaging apparatus comprising: an imaging section for imaging a stained sample to generate a cell image relating to a cell included in the stained sample; and an imaging abnormality detector for detecting an abnormality relating to the imaging section on the basis of the cell image generated by the imaging section, is also disclosed.