This study undertook an "Assessment of the Role performance of Secondary School Principals in Benin Metropolis". Eight objectives were set out to be achieved andeight research questions were formulated while eight null hypotheses were stated and tested.Descriptive survey research design was employed for this study. The population of interest for the study was 6668 consisting of principals, vice-principals and teachers. This population was drawn from secondary schools both public and private in the Benin metropolis comprising Oredo, Egor and Ikpoba Okha Local Government Areas. Data was collected from a sample population of 357 respondents using a well structured questionnaire titled ?Questionnaire on Assessment of Role Performance of Principals in Secondary Schools (QARPSSP)?. The data was analyzed using One Way Analysis of Variance (ANOVA) to test the null hypotheses at 0.05 alpha level of significance. Out of the eight null hypotheses tested,six were accepted while two were rejected. Findings of this research study were that principals of secondary schools in Benin Metropolis were performing poorly in the area of communication and instructional supervision of the teachers in the teaching and learning process. But on a positive note, it was found out that they were doing well in interpersonal relationship, decision making, staff development, discipline,school-community relationships and facility management. This research concluded that the principals of secondary schools in Benin City Metropolis do not posses good communication ability and do not carry out proper classroom instructional supervision of teachers in the teaching and learning process. It was therefore recommended that state ministry of education is to liaise with school owners and other stakeholders to organize seminars and workshops on communication for principals to educate them on the need to disseminate information within and outside the school community alongside how and when to use circulars and bulletin boards. and also on modern techniques of managing and improving on their instructional supervisionabilities in the school system. It is suggested that further studies be carried out in rural areas of Edo state or by using other methods or instruments of research like structured observation and interview. Studies should be carried out on the age,sex, educational qualification of the principal and its impact on the role performance of principals in secondary schools not only in the three local government areas covered by this study but Edo state and Nigeria at large.