To provide an automatic vending machine equipped with a display part which has such flexibility as to be freely bent, and whose advertisements can be freely rewritten.

An automatic vending machine (20) or a merchandise sample (21) (which is not shown in a figure) is provided with a display part (17) having flexibility in a micro-capsule type electrophoresis system, and an electric driving signal is applied to the display part (17) having such flexibility so that the advertisements of merchandise to be sold by the automatic vending machine (20) or the advertisements of campaign information, local information, or enterprise information can be freely displayed or rewritten according to the mounting place of the display part (17), a time when the advertisements are displayed, and the classifications of the advertisements.