The fully automatic square bottle four-sided labeling machine is a machine designed specifically for labeling square bottles. The fully automatic square bottle four-sided labeling machine can automatically complete a series of actions such as bottle feeding, labeling, and bottle outfeed. The equipment adopts a PLC control system and a touch screen human-machine interface operation, which can accurately locate the label position and perform high-speed and stable label attachment. At the same time, it also has automatic detection, counting, and shutdown functions, which greatly improves production efficiency and label sticking quality. It is widely used for labeling square bottles in industries such as food, medicine, daily chemicals, and chemicals.