This inspection device (1) is provided with a conveyance mechanism (2) for conveying a conveyed object (W), a first illumination mechanism (5) for illuminating an inspected surface (Wa) of an inspected object (W) conveyed by the conveyance mechanism (2) at an inspection point (P), and an imaging camera (4) for imaging the inspected surface (Wa). The first illumination mechanism (5) is provided with a plurality of light emitters (12, 20) for illuminating the inspected surface (Wa), and supports (6, 13) for supporting the light emitters (12, 20), and the support (13) supports the light emitter (20) that is closest to a conveyance path at a point in front or to the rear of a group of other light emitters (12) in the direction of conveyance of the conveyed object (W), at a position separated from the inspection position (P). Between the separated light emitter (20) and the group of other light emitters (12), a space (18) is formed whereby the inspected surface (Wa) can be observed from a back surface on a reverse side from the inspection position (P), and the imaging camera (4) images the inspected surface (Wa) through the space (18).