This article examined the impact of management evaluation on the training and development of staff productivity, with a particular focus on the Nigerian University system. The objectives were: to examine the personnel policy of the Nigerian University system, assess the extent to which the personnel policy has been implemented by the university, and identify the challenges faced by university management in the training and development of Staff for improved productivity. These also defined the scope and limitations of the study. The research design and methodology adopted a doctrinal approach using analytical and descriptive research methodology. The primary and secondary sources of data collection were physical and e-library sources. It was found that the personnel policy of most Nigerian Universities is not within the reach of the Staff of the University, it does not benefit the Staff of the University, and it does not positively influence Staff productivity; also that the University management does not carry out effective implementation and monitoring of the personnel policy concerning the staff of the University, and university management lacks equity in the training and development of Staff productivity. Based on the findings, it was recommended that the university senate should amend the personnel policy of the respective Nigerian university to be accordingly impactful on staff development and productivity. Moreover, the personnel policy should be made available for staff to work toward its development and productivity