To effectively utilize a box by using the box both for keeping goods for delivery and for collection.

When a sender keeps the goods to be collected by a carrier or the like 4 in the boxes 10a, 10b and 10c of a box part 1 and performs a shipping operation in the operation part 22a of a control part 2, load keeping information from an output part 23 by the control of a controller 25 is displayed at a display part 3, the collection is requested from a reporting part 24 to the transport company or the like and the person in charge of the collection and delivery of the carrier or the like performs collecting/unlocking operations in the operation parts 22a and 22c based on the load keeping information displayed at the display part and collects the goods. Also, when the person in charge of the collection and delivery of the carrier or the like keeps the delivered goods in the box of the box part and performs a delivering operation in the operation part 22b, the load keeping information from the output part by the control of the controller is displayed at the display part and a load receiver who confirms it performs receiving/unlocking operations in the operation parts 22b and 22c and receives the load.