The utility model discloses a trouble terminal discernment teaching device, comprises a workbench, set up power, controller and a plurality of trouble terminal on the workstation, every the trouble terminal sets up identification means, keyboard, pilot lamp and first time -recorder, identification means includes the mounting groove, set up the label in the mounting groove, set up the apron on the workstation, set up second time -recorder, display screen and alarm on the apron, set up the screw on the apron, set up the lead screw on the workstation, set up the synchronizing wheel on the lead screw, set up the hold -in range on the synchronizing wheel, still include the action wheel. The utility model has the advantages of power supply company's power consumption information collection system's multiple trouble can be simulated, simulated training, improvement maintainer's fault handling ability is carried out to maintainer.