Molding has been the main method of rubber products production for many years, but with the social development and technological progress, there are higher requirements on the quality, production efficiency, energy consumption and raw material consumption of rubber products. Compared with the moulding compound, the density of the injection moulding compound is higher, the hardness, strength and elongation at break are increased, and the permanent deformation at break is reduced, which is beneficial to the improvement of the properties of rubber products. Lu Baiyuan studied the properties of rubber products prepared by injection moulding and injection moulding. It was found that the hardness of injection moulding rubber increased by about 1% compared with moulding; the tensile strength of injection moulding tire and oil field blowout preventer rubber core increased by 1.3% and 4.6% respectively compared with moulding rubber; and the injection moulding rubber core of oil field blowout preventer increased by 1.3% and 4.6% respectively. The elongation at break of injection moulding compound for all-steel radial truck tire tread is 20% higher than that of moulding compound, the tear strength is 27% higher than that of moulding compound, and the permanent deformation at break of injection moulding compound for oil field blowout preventer core is 20% higher than that of moulding compound. Pressing compound decreased by 12%. It is concluded that the high fluidity and high injection pressure of the rubber during injection moulding increase the crosslinking degree of the molecular network, which improves the tensile strength and elongation stress of the rubber, and decreases the distance between the molecular networks, thus increasing the hardness of the rubber. Therefore, injection moulding T process is beneficial to improve the elasticity, wear resistance, tear resistance and flexibility of products