This study was carried out to assess the Principals? Role on Students? Service Delivery in Secondary Schools in Abuja Municipal Area Council. Abuja, Nigeria. Seven objectives were postulated in line with research questions and null hypotheses that guided the study. The objectives were set to: assess the principals? role on students? health care services, guidance and counseling services, recreational services, hostel accommodation services, library/ICT services, security service and principals? role on students? cafeteria services in secondary schools in Abuja Municipal Area Council. The following were some of the research questions and null hypotheses ; what way do the principals perform role on students? health care services in secondary schools in Abuja municipal area council?, how do principals perform role on students? guidance and counseling services? And what is the principals? role on students? security services? On null hypotheses, there is no significant difference in the opinions of principals, teachers and students on the principals? role on students? hotel accommodation services and there is no significant difference in the opinions of principals, teachers and students on the principals? role on students? cafeteria services in secondary schools in Abuja municipal area council. The study used descriptive survey design. The total population of the study comprised of 21 principals, 1,476 teachers and 21,246 students making total of 22,743. A total of 1305 questionnaire were distributed, 5 principals, 204 teachers and 1096 students were sampled. The selection of sample size was based on the recommendation of Krejcie and Morgan (1970) in Cohen, Manion and Marrson (2000) table of sample determination. Stratified sapling technique was used. The instrument used for the data collection was structured questionnaire developed by the researcher. The instrument was validated by the supervisors. To ensure the reliability of the instrument, Pearson Product Moment Correlation Coefficient was used during the pilot study in Abuja Municipal Area Council. This yielded a reliability coefficient of r= 0.85 at significant level of 0.05. Seven (7) null hypotheses were tested using Analysis of Variance (ANOVA). The result revealed that: That principals instructed students to visit health care centre whenever they were sick and ensured that qualified nurses were in the school health care centre in secondary schools in Abuja Municipal Area Council. Principals closely monitored and prevent students from drugs addiction and cultism and Principal ensured food sold to students meet the required balance diet and also ensured price fair is within the reach of the students in secondary schools in Abuja Municipal Area Council. In conclusion therefore, principals provided modern security gadget to assist security personnel to protect the students and principals also provided the resources for the security unit to produce students? identification cards. The study recommended that, provision of hostel accommodation services with water supply, light, lobbying space, rules and regulations should be introduced in the secondary schools by the principals, and provision of adequate students? library/ICT services with internet services, seats, valuable and resourceful textbooks should be encouraged by the principals in secondary schools in Abuja Municipal Area Council.