Suitable for cylindrical object labeling of various specifications, small taper round bottle labeling, such as xylitol, cosmetics round bottles, wine bottles and so on. It can realize full circle/half circle labeling, circumference positive and back labeling, and the spacing of positive and back labeling can be adjusted arbitrarily. Widely used in food, cosmetics, chemical, wine, medicine and other industries. lanlan202010wf Circumferential positioning detection device can be selected to realize circumferential positioning fixed point labeling. Optional ribbon coding machine and inkjet printer, labeling at the same time printing production batch number, production date, expiration date and other information, labeling, coding one step to complete, greatly improve production efficiency.