A specimen evaluation method including: a stirring step of stirring a measurement solution that contains a specimen; a measurement step of measuring, after the stirring step, the density of cells at a predetermined depth position in the measurement solution; a remeasurement step of measuring again, after the measurement step, the density of the cells at the predetermined depth position in the measurement solution; a change calculation step of calculating the difference between the density of the cells measured in the measurement step and the density of the cells measured in the remeasurement step; and evaluation steps of evaluating whether the specimen is good or not on the basis of the difference in the density of the cells.
