Therefore, we do research to assess knowledge, attitudes and practices of the Secondary School Chu Van An, Thu Dau Mot town, Binh Duong province for the use helmet and compliance traffic. Objectives: Determining the biomass ratio of 6, 7 are correct KAP helmets and comply with traffic rules and define the connection between proper knowledge, proper attitude and practice properly. Method: Research KAP cross section describes the student's grade 6 and 7 at the High School Chu Van An, Thu Dau Mot town, Binh Duong province.