The invention relates to a label stripping plate of a package labeling machine. The label stripping plate comprises a stripping plate body; an arc-shaped stripping surface is arranged at the front end of the stripping plate body; a communicating vent hole is formed between the arc-shaped stripping surface and the lower surface of the stripping plate body; and the vent hole is connected with a micro air pump. An arc-shaped groove is formed in the position, close to the arc-shaped stripping surface, of the upper surface of the stripping plate body. A pressing roller is arranged above the arc-shaped groove. The radius of the pressing roller is equal to the radius of curvature of the arc-shaped groove. The label stripping plate of the package labeling machine is simple in structure, and has the advantages of being good in label stripping effect and high in label stripping reliability compared with a label stripping plate of a traditional package labeling machine.