PURPOSE: To obtain an automatic rack warehouse which can eliminate the need of a forklift or the like and save the space and is low-priced by leading cargoes to make a vertical box type circulating motion so that the cargoes may be delivered from and stored in the warehouse.

CONSTITUTION: At the time of storing cargoes, a cargo 1 carried in a carry-in and carry-out port 7 is transferred on an empty tray 2 on an elevator 5. The elevator 5 is raised and stopped at a position of a rack 4 on an arbitrary stage, and a pusher 8 is torcod to make transfer-action to transfer the cargo 1 placed on the elevator 5 together with the tray 2 to the starting end of the rack 4 of the preseutly available stage. With the abovementioned transfer operation, a tray 2 placed on the terminal end is delivered onto the other elevator 6. Both side elevators 5, 6 are raised and moved to a rack 4 on another stage, and a pusher 9 is placed in transfer operation so that a tray 2 on the elevator 6 is transferred to the terminal end of a rack of the presently available stage. Conseguently, the tray 2 staying at the starting end is delivered onto the elevator 5. At this time, if the tray 2 is empty, the elevator 5 is lowered to the carry-in and carry-out port 7 to be on the standby for storing the next cargo 1.