Background/purpose: Human resources are the primary resource of any organization, especially educational establishments. Administrative staff, particularly administrative staff, are responsible for performing administrative duties as effectively as feasible. However, the performance of administrative workers and other civil servants frequently falls short of expectations. This research aims to evaluate the performance of high school administrative staff, focusing on the distinctions between Senior High Schools and Vocational High Schools and the connection between performance and the Job Performance Assessment Checklist. Materials/methods: This study is correlational and comparative. The population of this study was 115 administrative staff, covering five Vocational High Schools and seven High Schools. The sampling approach used was proportional random sampling. The data techniques are questionnaires, and ANOVA used for the regression line equation's linearity and significance tests. Results: Performance components only 0.15% can affect changes in Job Performance Appraisal Scores, and 99.85% are influenced by other factors, according to the coefficient of determination of 0.015. Conclusion: Job performance appraisal scores and performance are uncorrelated. The superior skills of SMK staff, supported by various facilities and training, are the reasons for the performance gap between SMK and SMA.