To provide a light unit attachment/detachment structure for a driving tool or the like that facilitates the detachment/attachment work of a light unit 10 and has a high light effect on the tip of a driving part.

The driving tool is provided with a body 2 having a drive in its inside and the driving part provided at the tip of the body 2, and it drives fasteners supplied to the driving part with the drive from the tip of the driving part. The light unit 10 is mounted attachably/detachably to/from a hook 8 protruding from the base part of the body 2 to the side and extended to the driving part side of the body 2 along the side face of the body 2. The light unit 10 can light near the driving part.