To provide a roll-like object holding device for air-tightly sealing a roll-like object, for protecting the object from dust, moisture, etc., and for transporting or storing the same without storing the same in a corrugate cardboard box etc.

This roll-like object holding device comprises a holding piece (A) having a protrusive cylindrical support 2A at the center of the inside face of a panel like part 1A, a reinforcement rib 4A on the outer face and a wall part 3A longer than the support 2A and erected on a peripheral edge and a holding piece (B) having the same structure as the piece (A) except that the piece (B) fits the wall part of the piece (A).