To solve problems of the conventional luminaire that the removing of a shade from a luminaire body is required in the replacement of a lamp, and since fittings are necessary to be operated by placing the hands on the upper surface of the shade of the luminaire in the high position for replacement, working attitude becomes unstable or lamp replacing becomes heavy work.

This luminaire has a lamp 5 mounted on the luminaire body 1 and the shade 2 covering the surrounding of the lamp 5, and an opening part capable of being opened and closed is installed in the shade 2. The opening part is positioned on the side surface or the lower surface of the shade 2, and used as a side surface lamp replacing port 29 or a lower surface lamp replacing port 28 for replacing the lamp.