Rare earth permanent magnet materials have become an ideal choice for drive motors in new energy vehicles due to their high magnetic energy product, strong coercivity and excellent temperature stability. This material can effectively improve motor efficiency, reduce energy consumption and extend range. In the field of new energy vehicles, rare earth permanent magnet motors are gradually replacing traditional motors and becoming an important part of the drive system of new energy vehicles due to their advantages of high power density, lightweight and miniaturization. In the future, with the continuous progress of rare-earth permanent magnet material technology, the performance of new energy vehicles will be further improved to promote the development of green mobility.