The High-temperature superconductivity coil can not only be used as the winding of the device, but also can directly form a magnet, and can also be used as an inductor. Superconducting magnets generally refer to superconducting coils wound with superconducting wires that can generate strong magnetic fields. As devices, they also include low-temperature constant temperature containers necessary for their operation. Superconducting magnets have significant advantages over ordinary permanent magnets and conventional wire electromagnets. The magnetic field near the poles of a general permanent magnet is within a few thousand Gauss, and it is very difficult to increase its magnetic field strength. An electromagnet is a magnet made by wrapping insulated copper or aluminum wire around an iron core. When generating a strong magnetic field, it generates high temperature and emits huge heat due to the need to apply a large amount of current to the coil. Due to the resistance of magnets and magnetic circuit losses, a large amount of electrical energy is wasted by converting it into thermal energy. To obtain a strong magnetic field using conventional conductors, it is necessary to use a magnetic core with high permeability, or increase the number of coil turns and current. However, the magnetization characteristics of magnetic cores have saturation limits and the magnetic core is too heavy, making it difficult to generate a stable strong magnetic field over a large range. Increasing the number of coil turns will increase the volume and weight, and it is also impossible to efficiently form a strong magnetic field in a small space range. The stronger the magnetic field of an electromagnet, the more electrical energy it consumes, and the higher the electromagnetic temperature, which will lead to the melting of copper, aluminum wires or insulators, limiting the application of strong magnetic fields.