Introduces the properties and applications of trans-1,4-polyisoprene. Its double bond by different levels of curing shows the characteristics of a three-stage sulfide, the amount of sulfur affects the mechanical properties of vulcanized rubber, and good supple chain makes it elastomer of high quality. Because of its good fatigue resistance, low rolling resistance and low dynamic heat, the dynamic performance are better improved without affecting the other properties when used with other rubber. It derives a series of new materials through modification, which have good industrial prospects.