The arrears issue in public service enterprises becomes the current focus of attention of our society. This paper proposed unreasonable regulatory mechanism is one of the most important causes of arrears. A Hawk-Dove game theory is applied here in order to produce a comprehensive analytic framework for solving such problem. Based on this theory, the paper analyzes the ESS for public service enterprises and users will be live and let-live. Several commendations for incentive compatibility are given accordingly: on one hand, call attention to the users frequently; on the other hand, install new anti-arrears equipments to make a record of the users and punish intentional arrears.