ABSTRACT The study critically assessed the effective use of school self- evaluation towards the improvement of academic performance in Prestea Huni- Valley District. Data for the study was obtained using semi-structured questionnaires and interview for respondents. In all, 50 respondents participated in the study. The researcher used a non- probability sampling known as convenience sampling technique to sample staff of teachers in selected schools used for the study and head teachers. The study results concluded that the respondents used end of term examinations, adequate homework, group assessment work to assess performance. Moreover, the respondents were familiar with in-service training, school self-evaluation, peer teaching and off the job training. Furthermore, the respondents had the knowledge about school evaluation. To add more, school selfevaluation was beneficial because it assisted teachers to adopt appropriate teaching and learning methods to improve academic performance. The study recommended that colleges of education should introduce the concept of school self- evaluation into their curriculum to enable teachers have a fair knowledge and understanding on the concept so that they will be more conversant with it.