The embodiment of the utility model provides a three-phase zinc oxide arrester simulates running device, include: power end, first transformer, silicon stack, filter capacitance, three-phase signal generator, the second transformer and capacitive load, wherein, the power end links to each other with three-phase signal generator through first transformer, silicon stack and filter capacitance, three-phase signal generator includes three signal output part, and every signal output part all links to each other with the second transformer, will the second transformer purpose secondary's one end is as first output, and the other end is as the second output, capacitive load's one end links to each other with the second transformer, and the other end is as the third output. Simulation three-phase zinc oxide arrester's power grid operation mode is applicable to the skills training teaching, the principle and the operative skill that can make the student understand and master this type of electrical equipment well, and equipment is simple, and the operation is succinct, and has higher security.