The main objective of this study is to investigate the Assessment of educational facilities maintenance on students' academic performance in public secondary schools in Kaduna state. To achieve the aim of this research,six objectives were formulatedwhich include: the assessment of classroom facilities maintenance;assessment of library facilities maintenance;assessment of laboratory facilities maintenance; assessment of infrastructural facilities maintenance;assessment of recreational facilities maintenance and assessment of instructional facilities maintenanceon students'academic performance, in-line with the objectives six research questions and six hypotheses were raised. Descriptive survey design was employed for this research. A self-structured design questionnaire was used for collection of data. The population of this study are principal (215), teachers 5305, and Ministry of Education Officials (MOE) (96). The sample size includes principals (65), Teachers (1592) and MOE officials (29),total of 1686 respondents were sampled for the studyout of which 1660 responded to this study. Stratified sampling technique was adopted for the selection of sample size. The results of findingsshowed among others that there is no significant difference in the opinions of principals, teachers and MOE officials on the assessment of classroom facilities maintenance on students' academic performance. The study concludes and recommends that class room facilities such as projectors and smart screens should be well maintained for teaching purposes. and other facilities such as waste bins and rules or consequences should be posted in each class and be maintain in public secondary schools for student'sacademic performance. The school'smanagement shouldmaintain the available instructional facilities like cameras and micro-films.