This study evaluated the performance of academic departments from the perspective of productivity management. A general and objective input-output model was constructed to analyze both the total and the partial productivity of the departments. The Analytical Hierarchy Process (AHP) and Data Envelopment Analysis (DEA) were both applied to weight and evaluate the efficiency of the decision measurement units utilized by the departments. Finally, a case study conducted at a university in central Taiwan was adopted to illustrate the evaluation process. The results from the case study offer effective suggestions for the improvement of departmental performance evaluation.