This standard specifies the green printing terms and definitions, material requirements, equipment requirements, plate making requirements, printing requirements and inspection methods involved in the process of flexographic printing books and periodicals. The scope of application includes flexographic printing of books and periodicals with paper as the substrate. Miscellaneous flexographic printing can be used with reference. Essential normative reference documents include standards such as lithographic decoration printing, primary and secondary school textbook paper, printing mass requirements and inspection methods. Green printing is defined as the use of environmentally friendly materials and resource-saving, energy-saving processes and equipment to produce products that are easy to recycle, recycle or natural degradation, and can reduce and reduce the harm to human body and ecological environment.