The invention relates to a performance appraisal log management system and a management method. A log management information processing functional module, a log management information storage functional module and a man-machine operation interface are arranged in a system information management platform of the management system. The management system realizes the evaluation and the effective management of work performance of employees through the record and the management of information of the employees and the log management information. The management system is applied to the management of the work activities, can regulate the work behaviors of the employees, establish the team work environment, improve the exchange mode of management information, and improve the work efficiency. At the same time, information intercommunication and resource sharing are realized among departments. The management system and the management method have the advantages of extensibility, reliability and safety in management range and at deep level, and easy operation. The dynamic, standard, and efficient flow-type management system is build to improve the levels of work routinization, automation and information integration.