The invention proposes an electric energy quality monitoring terminal simulator, and the simulator comprises an HMI man-machine interaction module, a control module, a building module, an IEC61850 server, and a database. The simulator is connected with an electric energy monitoring main station. The HMI man-machine interaction module, the control module, the building module, the IEC61850 server and the database are connected sequentially. The system carries out the simulation of communication behaviors of all terminals of the whole electric energy quality monitoring system, can save the testing equipment, reduces the testing cost, and shortens the testing period. The simulator which is used for testing can guarantee that the function and configuration of the electric energy monitoring main station are accurate, thereby achieving the seamless communication of an actual power distribution terminal and a client system, and guaranteeing the accuracy and reliability of data transmission of the whole electric energy quality monitoring system. The method is simple in configuration, is easy to implement, and can be quickly configured and complete the testing.