Implementation of school-based management is expected to increase the independence of schools in allocating available resources. This study used a descriptive method with a qualitative approach. Method to determine the subject using Purposive Sampling. Data collection techniques consisted of observation, interviews, and documentation. Data analysis used interactive model of Milles and Huberman. The technique of checking the data validity used source triangulation, technical triangulation, time triangulation, and member check. Research result obtained: (1) school-based management planning is carried out by formulating, establishing, and developing the school"™s vision, mission, and goals, identifying school needs, and compiling a work program, (2) implementation is carried out by creating an organizational structure, carrying out various school activities according to the school work program, and in accordance with the principles of independence, partnership, openness, and accountability, (3) evaluation is carried out by monitoring programs, school self-evaluation and seeing the achievement of work programs, (4) supporting factors include complete and appropriate facilities and infrastructure, quality teachers and education personnel, good partnerships with various parties, unique school culture, high nationality atmosphere, (5) inhibiting factors were the in availability of springs in the school environment and the less optimal of empowerment teachers and education personnel of this research. The conclusion is that the implementation of school-based management has been able to improve the quality of education at Senior High School 1 Toba Sanggau Regency.
