Permanent Magnet Materials, is an ancient and uses a very wide range of functional materials, and magnetic materials as early as 3000 years ago was that people understand and apply, for example, in Ancient China, as a natural magnet compass.Of modern magnetic materials have been widely used in our lives, such as permanent magnetic materials for motors, transformers used in the core material, as used in magnetic storage discs, computer floppy disk with magnetic recording and so on.Can be said that magnetic materials and information, automation, mechanical and electrical integration, defense, national economy is closely related to all aspects.Usually, that means over elements of magnetic material is iron, cobalt, nickel and its alloys can be produced directly or indirectly, of magnetic material.