To provide a locker device capable of making use of advantages of a card lock to the maximum extent and being usable even in a large-scale event or the like.

This locker device has a locker case body 2 forming a baggage storing chamber 1, a door body 3 blocking an opening of the baggage storing chamber 1 to open and operate it, and a card lock device 7 restraining a locking body 4 engaged and disengaged with/from the locker case body 2 at a position for locking the locking body 4 into the locker case body 2 while it is locked and being unlocked by a key card 6 being adapted to a cord forming card 5 mounted detachably to release locking of the locking body 4 into the locker case body 2. The card lock device 7 is fixed on a rear surface of the door body 3, and its surface is covered with the door body 3, which is provided with a card insertion slit 9 communicating with a card insertion part 8 of the card lock device 7. An auxiliary lock device 10 for moving the locking body 4 of the card lock device 7 to a locking release position forcedly by manual operation is fixed on the door body 3.