As an important part of special cables, high temperature cables have strong vitality and are in short supply. Due to the use of high-temperature superconducting materials with high transmission current density as conductors and liquid nitrogen as cooling rings, high-temperature cables have the advantages of small size, light weight, and low loss. High-temperature cables are suitable for occasions where large currents are transmitted over short distances, such as power plants and substations. Due to the characteristics of high-temperature cables, it is required to improve the level of technical research and development, and continuous breakthroughs in the development of materials are also required.