Under the background of national "deleveraging" policy, all environmental protection projects need to adopt the PPP mode, which is require to carry out performance appraisal.Such performance appraisal needs to establish corresponding criteria for appraisal, and the information system will assist in implementing the performance appraisal.Based on business process reengineering, this paper establishes a KPI performance management, which is then used to develop performance management system.The system is applied in Erhai Lake Ring Pollution Interception Project to help the government improve its work efficiency.