One of the emphasis of national education is on developing students' potential holistically and improving the quality of human resources as a whole. The very rapid development of technology and culture currently has a significant impact on vocational schools in preparing students with skills that suit the demands of the world of work. The aim of this research is to identify and analyze the influence of organizational culture and leadership on teacher performance in Central State Vocational Schools of Excellence in Serang Banten Regency with the role of mediation organization commitment. The research methodology used in this research is through a quantitative research approach with a saturated sample of 125 people using statistical model analysis SPSS Statistic version 29 and SmartPLS version 4.1.0.4. The research results show that organizational culture has a positive and significant influence on teacher performance, the role of leadership has a positive and significant influence on teacher performance, and organization commitment positive and significant effect on teacher performance, and can mediate organizational culture and the role of leadership on teacher performance. With these findings, the author suggests through managerial implications using the plan, do, check, and action (PDCA) concept in data-based planning, including involving teachers in the decision-making process, by giving them the opportunity to participate in goal setting, planning and evaluation, teachers feel valued and more connected to organizational goals, so that teachers feel more motivated to contribute and have better teacher performance, which will ultimately improve the quality of education, especially the quality of graduates.