New progress has been made in the application research and development of Eucommia rubber，which provide a strong support for the industrialization of Eucommia ulmoides . High wear resistance，high tensile modulus and low rolling resistance of tire glue could be made by blending Eucommia rubber with butadiene rubber and natural rubber，through appropriate ratio can even reach the aviation tire standard；after the optimization of the formula can also produce the semi-steel radial tire that can save at least 3% of gas consumption. High-speed aviation tire has been passed 397 km/h high-speed flight simulation test，all the indicators have reached the best between the same kind，marking the successful development of the first bio-based Eucommia rubber aviation tire around the world. Self-repairing elastomer materials have been developed by adding a large number of dynamic reversible ion or chemical bond to the modified bio-based Eucommia rubber，the self-repairing efficiency can reach more than 90%，which can not only automatically repair the loss caused by the use process，but also can extend the service life and reduce the cost，the self-repairing materials can widely applied to the aerospace，national defense，medical treatment，etc. Polylactic acid plastic toughening agent has been developed by toughening modified bio-based Eucommia rubber，the toughness was 24 times of pure polylactic acid materials，it will open up more space for the application of polylactic acid plastic in the automotive，aerospace and medical fields. By blending Eucommia rubber with polypropylene and poly lactic acid，the properties of blend will be changed from brittle fracture to ductile fracture；by dynamic vulcanization can also develop different kinds of blended thermoplastic vulcanizate. The use of Eucommia rubber greatly improved damping performance of spherical hinge of high-speed railway，which could provide high-quality materials and technical support for improving safety and comfort of high-speed railway.