This study was conducted to examine the relationship between manpower development and lecturers productivity in Delta State Colleges of Education. To guide the study, three research questions were raised and three hypotheses were formulated. The study was a correlation study. The population of this study was 842 lecturers in Delta State Colleges of Education in the 2014/2015 academic year. The sample used for the study was 252 lecturers of the Colleges of Education respectively selected from a population of 842 lecturers in the 2014/2015 academic year. The sampling procedure used was the random sampling technique. A survey instrument titled ‘Manpower Development and Lecturers’ Productivity Questionnaire (MDLPQ) was developed by the researcher to obtain data for the study. Data were analyzed using mean scores and Pearson “r”.