A display processing device has: an acquisition unit (101) for acquiring the similarity to query data of each of a plurality of similar data extracted with a similarity search on the basis of the query data; and an output processing unit (102) for outputting a display in which the region indicating the query data is disposed at one end, and a plurality of regions indicating the plurality of similarity data are disposed in positions corresponding to the similarity of each similarity data on a line extending in a prescribed shape from the end.