NdFeB magnetic materials are the third-generation rare earth permanent magnetic materials, and they are also the magnetic materials with the highest magnetic performance (energy, density), the widest application range, the fastest development speed, and the best comprehensive performance in industrial production at present. The application fields of NdFeB magnets are very extensive, covering many aspects from daily necessities to high-tech industries. With the progress of technology and the development of new materials, NdFeB magnets may have more application prospects in the future.