The utility model relates to a multi-layer electrode plate for a computer-control fault scanner. The utility model is characterized in that the multi-layer electrode plate is composed of insulating layers which are coated at both surfaces of a cathode-metal conductive basal-body layer and anode-metal conductive layers which are coated at the outer sides of the insulating layers. The thickness of the insulating layers is 5 to 100 mu m, the thickness of the anode-metal conductive layers is 0.2 to 50 mu m, and the total thickness of electrodes is between 0.18 to 0.26 mm. The utility model can enhance obviously the image quality of a CT machine, and has the advantages of good electrode quality, simple manufacturing process, convenient operation and high yield.