Abstract: A food inspection apparatus 1 includes: a conveyance unit 2; a light irradiation unit 3; an imaging unit 4 capturing an image of an inspection object A; a wavelength emphasis unit 5 emphasizing a foreign substance specific wavelength characteristic of a foreign substance F from light having a wavelength of 300 nm to 1100 nm by using a first and/or second optical filter 51, 52 or a wavelength-specific light source; and an identification processing device 6 identifying the foreign substance and including: a lightening unit 61 normalizing the captured image with 256 or less of gradations into lightened data; and an identification unit 62 having been provided with deep-learning of an identification processing of the foreign substance specific wavelength from the lightened data and identifying the foreign substance or a good item S in line from the lightened data obtained through capturing the image during conveyance of the inspection object.