The paper investigated principals’ educational resource management and teachers’ job performance in private secondary schools in Delta State. Two research questions were raised and two corresponding hypotheses were tested in the study. A correlation survey design was adopted in the study. The population of the study was 15,951 (1,177 principals and 14,774 teachers) out of which 390 respondents (29 principals and 361 teachers) were sampled for the study using a stratified random sampling technique after applying the Taro Yamane minimum sample size determination formula. Two questionnaires titled “Principals Educational Resource Management Scale “PERMS” with 20 items and “Teachers Job Performance Scale” (TJPS) with 20 items were used to collect data on the independent and dependent variables of the study. The instruments were face and content validated by three experts in Measurement and Evaluation from the Department of Educational Psychology, Guidance and Counselling, University of Port Harcourt while Cronbach alpha was used to estimate the reliability of the questionnaires. Out of the 390 copies of the questionnaire administered, 352 copies (90.3%) were retrieved. The research questions were answered using simple regression while the hypotheses were tested using a t-test associated with simple regression at a 0.05 level of significance. The result of the study showed that financial and material resource management had a strong positive relationship of 0.630 and 0.728 with teachers’ job performance and contributed 39.8% and 53.1% respectively to teachers’ job performance. The relationship between both variables was also significant. The regular financial audit was recommended so that school funds can be judiciously used to promteachers’hers job performance.<p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/soc/0071/a.php" alt="Hit counter" /></p>