The study investigated the challenges facing the planning of secondary schools education in the Federal Capital Territory (FCT) of Abuja, Nigeria. The research design for the study was a survey method. The target population is comprised of educational planners working in the ministry, department and agency of education that deals with education planning. The sample for this study was eighty people by random sampling technique used by four agencies of the federal government in FCT, Abuja. A structured questionnaire was used for data collection in the study. The reliability of the instrument was determined by testing and retesting. The data were analyzed using frequency counting and simple percentage. The result of the study showed; inadequate planning information, inadequate planning materials, poor educational planner training, political instability. Inadequate funding for planning activities and a shortage of professional educational planners are the challenges facing planning for secondary schools in FCT, Abuja, Nigeria.