Packaging machine is the ultimate guarantee that could carry out the mechanized and automatic packing, so the packaging machines play an important role in the production. Labeler is an important part of the packing machine, and high molar of labeling will make the product have more advantage. The development of packing machine was totally described in the paper; meanwhile, it set forth the development of labeler and the methods of labeling. Some new types of labelers were also introduced in the paper.The labeler which the paper designed included five segments: the mechanism of submitting stuff, the mechanism of transportation, bottle distributing mechanism and so on. The frame of collectivity was designed in the paper; meanwhile, the design of locomotion and power were processed. In addition, the security about the key transmission parts was checked and analyzed in the paper.