Abstract: This article aims to address the problems of traditional dismantling of old and damaged low-voltage household lines. A low-voltage household line electric rapid dismantling device with live working capability has been developed. The device consists of key components such as a combination insulation rod, insulation rod connector, fixed base, double-edged blade, and insulation material receiver. The efficiency and safety of the device have been verified through efficiency testing and safety evaluation, effectively improving the maintenance efficiency of power facilities, reducing safety hazards caused by manual operations, and helping to promote the comprehensive upgrade of power facility maintenance technology, laying a solid foundation for building a safer and more efficient power system.