To improve the sales promotion function of a winning device based on commodity sales result data in an automatic vending machine for providing a game for winning a gift by a winning probability and providing an additional commodity.

The data of a sales number and a column number are transmitted from a carry-out column part 5 to a main control part 1 and stored in a RAM 3. When a commodity is sold, the column number where selling is performed is transmitted from the carry-out column part 5 to the main control part 1 and the main control part 1 refers to the data stored in the RAM 3, judges whether or not the sales result of the column is equal to or more than the sales number set and inputted from a keyboard 8 beforehand, lowers the winning probability by a prescribed amount when it is equal to or more than the sales number and raises it by the prescribed amount when it is less than the sales number. Thus, the sales probability of the commodity for which the winning probability is raised is improved and the sales promotion function of the winning device is improved.