As the scale of China's power grid continues to expand, the daily workload and difficulty of the power industry has increased. Withstand voltage testing is an important part of it, and the demand for automated equipment has risen significantly, and the research of withstand voltage robots The research and application of withstand voltage robot has become inevitable. The purpose of this study is to develop an device for withstand high-voltage testing, which is controlled by an STM32 microcontroller to perform high-voltage tests instead of manually. In addition, there is a controller that can be controlled remotely using the network built inside the device. At the same time, the device can automatically detect and lift the test bench, and the algorithm written to achieve the planning of the travel route of the machine device.