The functions and operations of police are quite different from the other civil servants. The police management heavily relies on the ”carrots and sticks” principle in order to control police by means of rewarding the good and punishing the bad with an intention to enhance the morale and accountability of police. Yet the traditional police performance evaluation system over emphasized the quantified indicators without a balance of diversity, efficiency and foresight. Moreover, the performance system did not cover the spectrum of police services, not mentioning the inspiration effect. This paper aims to build a more practical and comprehensive police performance system in accordance with the philosophy of community policing by introducing the current system adopted by the police counterparts in the U.S. and U.K., as well as the concept of balanced scorecard which has been overwhelmingly welcome by the private sectors.