A person estimation device (10) includes an identification unit (200) for identifying a person in video. A person displayed in a smaller display area than the area defined by an identification enabled frame of the identification unit (200) is estimated by a CPU (110) in combination with the person identification by the identification unit (200). Here, statistic data concerning the person or the relationship between the persons is acquired from the statistic DB (20) and given as an estimation element. The person is estimated according to the estimation element.