An article supply device capable of supplying first and second type articles comprises a main body, an accommodation unit for accommodating articles, a supply unit for supplying articles accommodated in the accommodation unit, a lock unit which prevents articles from being supplied from the supply unit; and a detection unit capable of detecting the presence or absence of first type articles and the presence or absence of the second type articles accommodated in the accommodation unit, wherein the lock unit is turned into a lock state, on condition that the absence of the articles is detected by the detection unit.