The purpose of this specification is to specify the requirements of epoxy resin/carbon fiber prepreg, mass assurance provisions, delivery preparation and description matters, etc. Applicable to the design, manufacture, delivery and use of epoxy resin/carbon fiber prepreg. A series of relevant standards are cited, including performance test methods for fiber reinforced plastics and physical performance test methods for composite prepreg. Appearance of prepreg is required to be uniform, no obvious defects are allowed, and defects such as metals, Non-metallic particles, curing materials are not allowed, and requirements for defect identification are specified.