110kV cross-linked polyethylene insulating power cable has a series of advantages, such as simple structure, high dielectric strength, low dielectric loss, anti-aging, easy installation, no limit of head drop during the cable laying, etc. 110kV cross-linked polyethylene insulating power cable is suitable for 110kV high-voltage transmission and distribution circuit. Especially in the urban underground transformation and transmission grid, the application of this power cable is increasing.