Provided is an automatic column setting device for an article vending machine. The device is for an article vending machine 1 including a column in an article storing shelf 13, to store articles arranged in a front-rear direction, and a dispensing mechanism 55 removably installed for the column in the shelf 13, to sequentially dispense the stored articles, the mechanism 55 is arbitrarily installable at a plurality of preset right and left positions in the shelf 13, and the automatic column setting device includes a motor presence/absence information preparing section 81 that detects an installation position of motor 61 in accordance with a connected state of motor 61, and a pattern extracting section 82 that determines a type and an installation position of the mechanism 55 in the shelf 13 based on presence/absence information of motor 61 that is detected by the motor presence/absence information preparing section 81.