The purpose of this study is to investigate gender roles in vocational high schools. Hence, this study attempted to determine whether gender distributions in schools are influential in the gender roles of students. The sample included 423 students studying in five different types of high schools (vocational, health, multi-program, girls' vocational, and boys' religious). The study was designed in the survey model. Bem's Gender Role Inventory was used to collect the data. The results of the research revealed the differences between sex and gender roles. In addition to that, there was a significant difference in the gender role ratios of male and female students, depending on the type of high school. To conclude, gender weight in the vocational school affects gender roles, primarily vocational high schools.