Abstract: With the development of urban roads, street lamp poles are aging after many years of operation, and have not reached the replacement period. Under the old standard, the normal operation mode of street lamps under the new standard can no longer be met. In order to reduce the grounding resistance of street lamp poles, it is ime-consuming, material-consuming and manpower-consuming to adopt the traditional resistance reduction method. Based on the temporary grounding method of mobile equipment grounding resistance, a new grounding combination method is adopted to reduce the grounding resistance of light poles, which is convenient to install. This method does not need to go through the road excavation procedures.