This studys main focus is on how employee turnover affects students academic achievement at several private secondary schools in Mangalore city. This study is based on Abraham Maslows humanistic theory of needs, which holds that an individuals behavior at work is influenced by their needs at any given moment. When people work at a job that does not provide them with the necessary empowerment to fulfill their requirements, they will be forced to leave that job in search of one that does. To collect the data for this research, the researcher employed both qualitative and quantitative techniques. The study discovered that pupils academic performance is negatively impacted by labour turnover. The study also revealed that a lack of availability of qualified substitute teachers among educational institutions leads to a slowdown in students academic activities caused by labour turnover. This development has the ability to hinder students academic advancement. In order to encourage educators to work for the schools over a long time, the study suggests that teachers receive competitive pay. This will enable uninterrupted instruction and learning activities.