With the rapid development of the school uniform industry，the supply and demand of the school uniform market are “prosperous”，and the pressure of school uniform supervision is increasing. This report selects the quality supervision and sampling inspection reports of school uniform products published by the national provincial and municipal market supervision and administration from 2016 to 2020，analyzes the main problems and evolution trend of school uniform quality，reveals four types of quality and safety risks of school uniforms：rope safety hidden danger，fabric acid-base imbalance，chemical hazards and carcinogens，and analyzes the causes of product quality and safety risks. Finally，the corresponding suggestions for improving the quality of school uniforms are put forward，which provide a reference for improving the quality of school uniforms and ensuring the safety of primary and secondary school students.