A target object detection apparatus for identifying a target object by using at least a camera and a wireless tag provided on the target object which exists outside of the target object detection apparatus, comprising: a target detector for reading a first identification information documented in the wireless tag; an image processor for extracting a first image information of the target object imaged by the camera; a personal identifier for identifying an imaged target object by comparing the first image information extracted by the image processor and a second image information specific to the target object; and an integration processor for determining a third identification information of the target object based on at least a second identification information identified by the personal identifier and the first identification information read by the target detector.