Abstract: This paper elaborates on the design concept and application practice of a new type of 10 kV retractable hard shielding cover, which addresses the installation difficulties, unstable connections, and complex recovery issues of traditional live working shielding devices in distribution networks. Through multi section telescopic structure, high-performance insulation material selection, and intelligent control innovation, the flexible application and safety guarantee of the shielding cover in different work scenarios have been achieved. Through laboratory testing and on-site application verification, the shielding cover is superior to traditional products in terms of insulation performance, mechanical strength, and ease of operation, significantly improving the safety and efficiency of live working in distribution networks and providing reliable technical support for the development of the power industry.