An article storage apparatus which enables categories to be subsequently assigned to storage sections or categories given to storage sections to be changed according to the progress of the user's storing operation or the user's desire. A plurality of storage shelves are provided to store articles. A RFID reader reads out a category assigned to an article to be stored in each of the storage shelves. A controller sets a category to be assigned to each storage shelf according to the category assigned to the article stored in the storage shelf.