School-Based Management (SBM) is a strategy to improve education by transferring significant decision-making authority from state and district offices to individual schools. Every education institution in Magdalena District is experiencing various problems and School-Based Management is one of the ways to address these problems. Previous studies prove that School-Based Management plays a vital role in keeping the school system in harmony. With this, principals, teachers, students, parents, and other stakeholders are given greater control over the education process by giving them responsibility for decisions about budget, personnel, and the curriculum. Through the involvement of teachers, parents, and other community members in these key decisions, SBM can create more effective learning environments for children. The results show that the significant relationship between SBM practice as to leadership and governance, curriculum and instruction, accountability and continuous improvement and management of resources and the performance of Magdalena District as to admin support, teacher support, student support and community support. It was evident that the obtained p-values, between leadership and governance, curriculum and instruction and accountability and continuous improvement and the admin support performance were all lower than the level of significance. Besides, management of resources and the admin support performance also gained a p-value that was lower than the level of significance. Based on the gathered data, the significant relationship between SBM practice as to leadership and governance, curriculum and instruction, accountability and continuous improvement and management of resources and the performance of Magdalena District as to admin support do not accept the null hypothesis of which states that “On the basis of the questions presented above, the hypothesis below provided direction of the study – that School Based Management practice have no significant relationship on the performance of public elementary schools in Magdalena District”. These implies that there is a significant relationship between SBM practice and the performance of Magdalena District as to Teacher Support, Administrative support, Community Support and Student Support.