High temperature superconducting coil plays an important role in superconducting power devices,the current carrying capability and reliability of high temperature superconducting coil is directly decided by the structure and winding process.In this paper,the key technology of winding process of high temperature superconducting coil for power application was presented,which included choosing superconducting materials,winding of coil,welding of joints and insulating treatment of the superconducting coil. In a...