Abstract: High voltage lightning arrester is an important safety protection component of power equipment, its core function is to protect electrical equipment from lightning or operating overvoltage damage. In order to improve the efficiency of the experiment, a series of optimization strategies are adopted, in which temperature and humidity sensors are added to carry out real-time environmental monitoring, and the measurement results are automatically corrected by the algorithm, and the electromagnetic shielding design is strengthened, it also simplifies the operation interface flow and optimizes measures to improve the accuracy of the test, and improves the overall performance of the high voltage surge arrester test system, which provides a strong guarantee for the safe and stable operation of the power system.