To provide a storage device capable of appropriately arranging stored objects on a shelf plate without using a partition member or a locking member and, even if vibration or inclination occurs, causing no displacement or fall of the stored object, in the storage device consisting of the storage shelf such as a rack and a cabinet, and a plurality of stored objects to be stored on the storage shelf and, in particular, appropriately storing the stored objects at predetermined arrangement positions.

This storage device 1 includes the shelf plate 3 where a concave portion 5a is formed at a predetermined arrangement position, and the stored object 4 arranged at the predetermined arrangement position and having a convex portion which is fitted into the concave portion 5a without being loosened substantially.