To attain improvement of efficiency using an element plate warehouse, by efficiently collecting the specified number of sheets of pallets less than the specified number of sheets, again performing loading.

A sorting device 3, a batch transfer equipment 4, a single part transfer equipment 5, an in-stock device 6, a pallet exhaust device 7 and a control device 8 are provided, in the control device 8, a fraction pallet is successively shipped out of an element plate warehouse 1 in accordance with a prescribed order, by the sorting device 3, to be sorted in either one of the batch transfer equipment 4 or single part transfer equipment 5, also an element plate transfer by the batch transfer equipment 4 in an after process carry out line (from conveyer D to conveyer G), by the single part transfer equipment 5, is stacked back to the specified number of sheets in a fraction pallet waiting on a conveyer F, thereafter with the pallet again in stock to the element plate warehouse 1 by the in-stock device 6, a series of such operation control is repeatedly performed.