Inspection equipment for a mouth section of a bottle-can, with respect to the bottle-can having a cylindrical mouth section in which a curl portion is formed by curling an open end thereof for a cap with a liner to be put on, by taking an image of an imaging area (α) which is set to include a part of the curl portion for detecting asperity at the curl portion, the inspection equipment comprising: a rotating device which holds and rotates the bottle-can around a can-axis; a first illumination device which irradiates a first illumination light substantially along a tangential direction of a cylindrical surface of the mouth section toward the curl portion in the imaging area; a second illumination device which irradiates a second illumination light having a different light color from that of the first illumination light toward a part in which the first illumination light is irradiated on the curl portion from an opposite side to the first illumination light with the imaging area therebetween along substantially the tangential direction of the cylindrical surface of the mouth section; a third illumination device which irradiates a third illumination light having a different light color from that of the first illumination light and the second illumination light toward the part in which the first illumination light and the second illumination light are irradiated on the curl portion along an intersecting direction; an imaging device which is disposed toward the imaging area and obtains an inspection image including reflected lights (r, b, g) of the first, second and third illumination lights at the curl portion; and characterized by an asperity-recognition device which is connected to the imaging device fetches the inspection image, detects an edge position of the curl portion based on an imaging result of the reflected light (g) of the third illumination light by following the reflected light of the third illumination light and regarding a position thereof as the edge position of the curl portion, specifies the curl portion by referring the edge position, and detects the asperity at the curl portion based on imaging results of the reflected lights of the first illumination light and the second illumination light existing in the inspection image. a rotating device which holds and rotates the bottle-can around a can-axis; a first illumination device which irradiates a first illumination light substantially along a tangential direction of a cylindrical surface of the mouth section toward the curl portion in the imaging area; a second illumination device which irradiates a second illumination light having a different light color from that of the first illumination light toward a part in which the first illumination light is irradiated on the curl portion from an opposite side to the first illumination light with the imaging area therebetween along substantially the tangential direction of the cylindrical surface of the mouth section; a third illumination device which irradiates a third illumination light having a different light color from that of the first illumination light and the second illumination light toward the part in which the first illumination light and the second illumination light are irradiated on the curl portion along an intersecting direction; an imaging device which is disposed toward the imaging area and obtains an inspection image including reflected lights (r, b, g) of the first, second and third illumination lights at the curl portion; and characterized by an asperity-recognition device which is connected to the imaging device fetches the inspection image, detects an edge position of the curl portion based on an imaging result of the reflected light (g) of the third illumination light by following the reflected light of the third illumination light and regarding a position thereof as the edge position of the curl portion, specifies the curl portion by referring the edge position, and detects the asperity at the curl portion based on imaging results of the reflected lights of the first illumination light and the second illumination light existing in the inspection image.