An automatic food and beverage vending machine includes: a case; an ordering and billing system; an electronic control system; and an output system; wherein the output system comprises a food provider and a food outlet, the food provider is mounted in a food storage area of the case; the food provider comprises a tray holder, a food box transporter, and a sliding device; the tray holder and the food box transporter are mounted on the sliding device; the sliding device comprises an up-down sliding mechanism, a left-right sliding mechanism, and a front-rear sliding mechanism; the food outlet is provided on a door of the case. The machine provides a small volume, a small land occupation space, convenience of moving, a short time before obtaining the food, a proper food temperature for eating immediately, and a quick manner of dining for people in a hurry.