Abstract: In response to the safety hazards during the operation of substation lifting, a three-dimensional protective alarm system capable of real-time monitoring of lifting is studied. Utilize key technologies such as UWB and base stations to form a three-dimensional electronic fence for the crane. During construction, lifting, transportation, and other operations within the operating substation, the system provides a comprehensive and three-dimensional perimeter alarm for the high-altitude rotating arm, extending arm, and other links of the crane. Reduce the safety risks and hidden dangers of lifting operations. Significant results have been achieved in power construction work.