The short-circuit grounding wire is an important device to ensure the personal safety of power production. The traditional portable short-circuit grounding wire lacks intelligent monitoring means, and often suffers from leakage, misconnection, and detachment, which brings safety hazards to personal, equipment, and power grid safety, and even personal injury or death. Based on the internet of things(IoT) technology, this paper designs the overall framework including the sensing layer, network layer, platform layer and application layer, and develops the grounding line intelligent monitoring device and system to realize the automatic collection and movement of grounding line distribution, hooking status and equipment information, real-time monitoring and integrated management. Through the actual scenario pilot of Wuxi Power Supply Company of State Grid, result shows that the intelligent monitoring device and system can visually display the multi-dimensional information of the grounding equipment, and have the characteristics of real-time, mobility and scalability, effectively assisting security management decision-making, and improving on-site security integrated control level.