The invention discloses a high-capacity automatic vending machine capable of avoiding damage to goods. The high-capacity automatic vending machine includes a counter, goods storage cases arranged in the counter, a display screen, and a man-machine trading system; spiral discharging mechanisms are arranged in the goods storage cases; a discharging device is arranged in the counter; the discharging device includes a carrying frame, a transmission mechanism, a discharging outlet, a baffle plate arranged in the back of the discharging outlet, and a slide plate for shielding the discharging outlet; the transmission mechanism includes a left vertical leading screw, a right vertical leading screw, a first motor for driving the left vertical leading screw and the right vertical leading screw to rotate through a synchronous belt, a left slide block and a right slide block which are threadingly connected to the left vertical leading screw and the right vertical leading screw respectively, a second motor and a bearing which are fixedly connected to the left slide block and the right slide block respectively, and a transverse leading screw which are horizontally arranged between the second motor and the bearing, wherein the transverse leading screw is threadingly connected to a transverse slide block, and the carrying frame is fixedly connected to the transverse block. The high-capacity automatic vending machine can avoid damage to goods during discharging, fully utilizes the capacity of the counter, and facilitates goods taking.