Abstract: Automatic vending machine (100) having: product storage device (4) arranged inside heat-insulated chamber (1a); cooling device (30) cooling products (C); control unit (40); and back-side duct (6). Pooling device (30) has: compressor (21); condenser (22); expansion mechanism (23); and evaporator (11) provided inside chamber (1a) and evaporating a refrigerant to cool ambient air, and cools products (C) by cooling the air in chamber (1a) and circulating air through back side duct (6). Expansion mechanism (23) has electronic expansion valve (23a) capable of adjusting aperture of a refrigerant flow path, and in both a case of partial cooling operation and a case of entire cooling operation, control unit (40) executes aperture control of controlling aperture (S) of electronic expansion valve (23a) so that a temperature difference (?T) between a temperature of the inside of chamber (1a) and refrigerant evaporation temperature (T3) of the evaporator (11) are within a predetermined range.