PURPOSE: To provide a case for a film unit with a lens which can be attached to a belt at a low cost.

CONSTITUTION: The case 1 for the film unit with the lens is formed of a cardboard printed by imitating the external appearance of the film unit with the lens on its surface, and constituted of a box part 23 having an aperture 23a in which the film unit 2 with the lens is inserted and a flap 4. A magic tape is stuck to the flap 4, and the flap 4 is bent to the back surface side of the box part 23 and fixed on the box part 23 with the magic tape, so that the case 1 is attached to the waist by allowing the belt 32 to pass through the flap 4.