An advertisement translation device is a device for translating an advertisement text displayed in a display area of a predetermined size in advertisement content, and displaying the translated advertisement text in the display area. The advertisement translation device includes: an advertisement text obtainment unit which obtains the advertisement text; a linguistic information obtainment unit which obtains linguistic information indicating a target language into which the advertisement text is to be translated; a translation unit which create translated text candidates by translating the advertisement text into the target language indicated by the linguistic information; and a selection unit which selects and outputs as a translated text, at least one of the translated text candidates a full text of which is displayable in a predetermined character size in the display area.