Learner discipline is one of the pillars of the education system of any country. However, research studies have found that it has become the number one public health problem in state secondary schools in Mauritius, in particular, over the past decade. This study aimed at determining the role of principals in maintaining effective discipline among learners in selected Mauritian state secondary schools. The researcher determined the causes of a lack of learner discipline, the possible barriers that prevent state secondary school principals from maintaining effective learner discipline and the disciplinary strategies that the principal may adopt and implement for effective learner discipline. The qualitative research approach was used for the empirical inquiry carried out in the selected research sites. The researcher gathered information about learner discipline and disciplinary strategies from selected participants, namely 24 learners, 24 educators, 24 parents, 4 principals and 2 school superintendents from four state secondary schools through focus group interviews, individual interviews and non-participant observation. The study revealed that all the stakeholders in the education system of Mauritius, inter alia the principals, parents, school superintendents, educators, learners, the Educational Zone Directorates and the Minister of Education have a misconception of learner discipline. They follow a custodial perspective rather than a humanistic perspective of learner discipline at schools: they adopt reactive and punitive or corrective disciplinary approaches instead of proactive, preventive and positive approaches to learner discipline management. The literature study on the causes of learner indiscipline and the reseach-based behavioural strategies and the empirical inquiry in the selected schools allowed the researcher to make a critical assessment of the current disciplinary strategies implemented by the state secondary school principals. In addition, the findings of the investigation provided the researcher with the knowledge to propose a learner discipline management model. The model provides the principals with the research-based strategies and guidelines to effectively manage learner discipline. / Educational Leadership and Management / D. Ed. (Education Management)