A coffee vending machine is a self-service device that serves coffee and various related beverages. They are equipped with coffee bean grinding modules, precise temperature control systems, milk frothing devices, and intelligent payment terminals. These technologies enable coffee beans, fresh milk, and other raw materials to be quickly ground, extracted, and blended, and then provided to customers at any time. Coffee vending machines have become a popular trend in the global beverage retail market due to their convenient form, efficient service, and the possibility of customizing a variety of beverages. This article will introduce the working principle of coffee vending machines, different types of coffee vending machines, and their advantages and disadvantages in use.