To obtain an egg quality inspection device capable of acquiring a rational arrangement configuration of a configuration member by achieving the miniaturization of the device.

A laser beam irradiating part and a laser beam receiving part are installed in a housing, and one reflector plate is installed at the angle of 45 degrees at a position where the outgoing and incident directions thereof cross. In a laser sensor, the width w and the depth d thereof are (w<d), and inner widths h, H from the outer side of a part where a movable carriage enters and leaves to the left and right outer walls of the housing are (w<h) and (d<H) in (h<H). A load cell is installed in the housing of the part of the inner width H, outgoing and incident directions of laser sensors installed in the respective housings of the inner widths h, H are parallel with or perpendicular to a direction where the movable carriage enters and leaves, and an opening part of the housings are provided closably by a shield plate.