There are included a colony evaluation unit 31 that acquires an evaluation result of the cell colony in a cell image obtained by imaging the cell colony, a divided region setting unit 32 that sets a plurality of divided regions by dividing the region of the cell colony according to the evaluation result, a display control unit 34 that displays each of the plurality of divided regions, and a region deformation unit 33 that deforms the divided regions according to a change in the form of the cell colony due to an operation on the cell colony. The display control unit 34 changes a display of the divided regions before the change in form of the cell colony to a display of the divided regions after the deformation.