The cell image search apparatus includes: an image set storage unit; a captured image acquisition unit that acquires a plurality of captured images obtained by imaging cells in time series; an image feature amount extraction unit that extracts an image feature amount from each cell image of the image set and each of the plurality of captured images; an image search unit that searches for a captured image similar to each cell image of the image set, among the plurality of captured images, based on image feature amounts of each cell image of the image set and the plurality of captured images; and a search result output unit that outputs a search result in a case where captured images similar to at least two cell images included in the image set are searched for by the image search unit.