This document stipulates the terms and definitions, requirements, test methods, inspection rules, packaging, storage, transportation and marking of high-quality school uniforms. This document applies to clothing produced with high-quality textile fabrics as the main material and worn uniformly by students on a daily basis in school. This document is drafted in accordance with the provisions of GB/T1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents". The setting of the size should be carried out in accordance with the provisions of GB/T1335.3, and the size beyond the standard range should be expanded according to the binning value specified in the standard.