This study evaluated the administration of Colleges of Education in Nigeria from (2003 - 2012). Eleven aspects of the administration were investigated. They include staff strength, staff development, conduct of admission and examination, maintenance of discipline and plants, supervision and decision-making process, communication and staff and students? welfare provisions. Eleven objectives were outlined to guide the study, eleven research questions were raised and eleven null hypotheses were formulated. The survey method of research was employed. The population was made up of four groups, all the management staff 528, all the academic staff 3684, all the non-academic staff 9101 in the Colleges and all senior officials of the National Commission for Colleges of Education (NCCE) 86 totaling 13,399. Using both randomization and randoam stratified sampling techniques a rounded sample of 1000 respondents were selected and used. A structured questionnaire made up of 100 statements on five point Likert rating scale, validated by experts with a computed realiability-coefficient of 0.813 level was administered on the selected respondents. 810 copies of questionnaires were returned and used for the data analysis. The hypotheses test rejected ten hypotheses and only one hypothesis was accepted The statistical tools used include mean, standard deviation,One-Way Analysis of Variance (ANOVA) and post hoc Schaffer?s test. Some of the major findings of this study are that staff strength of Colleges of Education was inadequate more especially in staff-student ratio of the Colleges. That there are provisions of various staff development programmes in Colleges of Education in Nigeria but staff have inadequate access to them. That the respondents support the opinion that improper admission exercises were conducted by the Colleges. Therefore, recommendations include the need to urgently raise the staff-student ratio of the colleges against the teeming population of the students. That the colleges should endeavor to provide more access to their staff for all programmes available, to enhance personnel capacity development. That the colleges should take more water-tight measures to curtail discrepancies in their admission exercises. It was also recommended that for further research work other aspects of the administration not covered by this study should be researched into