The study aims at evaluating disciplinary process and implication for secondary school administration (A case study of Ojo Local Educational District of Lagos State). Three null hypotheses were formulated accordingly to guide the study. The study adopted a descriptive survey research design. Census technique was adopted in selecting the entire population of 108 secondary school managers which comprised of 56 principals and 56 vice principals across 56 public secondary schools available in the area. A questionnaire tagged: “Evaluation of Disciplinary Process and Implication for Secondary School Administration Questionnaire (EDPISSAQ)” designed and administered by the researcher was used as an instrument for data collection. The null hypotheses were all tested at .05 level of significance using Pearson Product Moment Correlation Analysis. Findings from the study revealed that warning, suspension, and dismissal have significant relationships respectively, to secondary school teachers’ job effectiveness. Based on the findings of this study, it was recommended among others that; there should be fairness in the administration of suspension to all teachers through well-documented procedures