This study investigated good governance issues in education system and management of secondary schools in Nigeria. The objectives of this study are to examine the relationship between resources management, accountability, participatory decision-making, and management of secondary schools in Nigeria. Three hypotheses were formulated and tested. Quantitative research design was used for the study. A self-constructed questionnaire titled "Good Governance and Management of Secondary Education Questionnaire" (GGMSEQ) was used to collect information for the study. The population of this study comprised all 310 principals and 6,894 teachers in public senior secondary schools in Kwara State, Nigeria. The sample of 175 principals and 364 teachers, totaling 539 participants, was selected with the use of Research Advisor's (2006) table of determining sample size of a known population, stratified random sampling technique was used to select principals and teachers from the sample schools. Thus, ensuring that all categories of principals and teachers were given an equal chance of being selected. The data collected were analyzed using Pearson Product Moment Correlation statistical analysis. All hypotheses were tested at 0.05 level of significance. The result revealed that there was a positive and significant relationship between resources management, accountability, participatory decision-making, and management of secondary schools in Nigeria. It was recommended that government should continue to ensure effective management of the resources, accountability, as well as fostering the voice of citizens through participatory decision-making towards the realization of effective management of secondary schools in Nigeria.