This machine is applicable to labeling circle and half circle of instable cylindrical objects. It adopts horizontal transmission, horizontal labeling to increase its stability and improve the labeling efficiency.It can use coder ink-jet printer as an optional attached to the header. It can print on the label the production date, batch number and barcodes. What is more, it can select ink-jet printer to the conveyor belt so that those printing information can be printed on the products before or after labelin. This machine is also applied to continuous line production.