The invention relates to the technical field of manufacturing zinc oxide lightning arrester, in particular to a method for preparing a high-performance zinc oxide resistor sheet, subsequently the steps of mixing, granulating, pressing, debinding, firing, spraying aluminum and coating high resistance layer and insulating glaze. By creatively designing the technological conditions of glue drainage and firing, a synergistic effect is obtained to compensate for that volatilization of organic matter in the glue discharge stage, pore defects caused by decomposition in zinc oxide resistor sheet and volatilization of bismuth oxide in firing stage, Improving the density and uniformity of zinc oxide resistor, improving the potential gradient of zinc oxide resistor, energy absorption capacity and current shock resistance, and improving the electrical performance of zinc oxide resistor as a whole, it is easy to meet the requirements of ultra/ultra high voltage lightning arrester devices, and is conducive to the volume miniaturization of the resistor.