The invention relates to the field of electricity, in particular to an electric spraying method of anti-pollution flashover paint for 500 kV transformer equipment. The method comprises a sweeping step and a painting step. The other end of an insulating rope is wound on a reel arranged at the lower end of a fixed supporting main rod, a sweeping insulating rod can be adjusted to ascend and descend through the winding of the reel, and an insulating brush is arranged at the end of the sweeping insulting rod; an atomization pressure working machine is powered on for conducting spraying. The electric operation method is completely different from a traditional operation method. The atomized paint or paint is conveyed into a conveying pipe of high insulation level through the pressure working machine under high pressure, the paint is conveyed to a spray nozzle at the upper end of an operation rod through the conveying pipe, the paint is sprayed to a porcelain bottle through the spray nozzle, the conveying pipe is filled with the atomized paint or paint, and the paint is of high insulation level, so that no air exists in the conveying pipe. Therefore, the absolute safety of the conveying pipe and materials inside the conveying pipe in the electric operation is guaranteed, and the personal safety is guaranteed absolutely.