The multi-color printing plate cylinder of the satellite rotary label printing machine adopts a large impression cylinder, and the printing material is closely attached to the central impression cylinder through friction, which overcomes the elongation and deformation of the printing material, avoids relative sliding and keeps the stamping force stable, so that the overprinter quality and overprint accuracy can be well guaranteed to be within ±0.05mm ... and the printing adjustment time is short and the material loss is small. The use of UV ink overcomes the shortcomings of short space between printing units and easy to get dirty, and instantaneous drying can be realized by UV after printing. However, the printing materials can only be printed on one side after passing through a impression cylinder, so some models are equipped with two impression cylinder, which can realize double-sided multi-color printing. Satellite label printing machine is suitable for printing materials with fixed pattern, large batch, high precision and great flexibility.