To provide an automatic loading device capable of setting arrangement of a plurality of articles so that loads of a plurality of the articles loaded on a pallet are roughly balanced and a biased load prevention program.

This automatic loading device 1 is furnished with the pallet (p) on which a plurality of loading areas (a) on which each of the articles 2 is loaded are allotted around a center (m), a control number memory device 3 to record a control code to specify a plurality of the loading areas (a), a sub control number memory device 4 to record a plurality of the loading areas (a) by ranking them in accordance with a following method, a cargo handling device 5 to deposit and deliver the articles 2 in and out from a plurality of the loading areas (a), an information processor 6 to control the cargo handling device 5 and an input device 7 to which the control code of the loading area (a) selected from a plurality of the loading areas (a) is input.