Rubber magnet is a new type of rubber composite material. Because it has both the magnetic properties of rigid magnets and the flexible elastic of rubber, in modern society, it is widely used in the manufacture of magnetic sealing accessories, such as the daily use of the refrigerator door seal, as well as the sealing of the car windows and other building doors and windows that need to be sealed. In the field of the calculating machine, the magnetic rubber is processed into a magnetic rubber. The rubber magnetic steel has the advantages of light weight and good uniformity, its effect is superior to that of the traditional sintered magnetic steel. Magnetic rubber can also be used with good damping properties and different mixtures to produce high damping magnetic rubber according to the need of rubber. It can be used in aerospace, military and civil shock absorption. In terms of health care, magnetic rubber is also widely used, such as magnetic insoles, belts and other health care products. Because of the special performance of magnetic rubber, it has been applied more and more widely in various fields.