Abstract: The stress-strain curve values of TC18 titanium alloy were imported into the Deform simulation software,and a certain type of aerospace titanium alloy support die forging simulation model was established. The influences of forging speed and friction coefficient on the forging load, equivalent strain and maximum deformation speed of titanium alloy support were studied. The results show that with the increase of die forging speed and friction coefficient, the maximum forming load and maximum deformation speed of the support die forging are gradually increased, while the equivalent strain increases first and then decreases; the optimum die forging parameters of TC18 titanium alloy support are die forging temperature of 850℃, die preheating temperature of 650℃, die forging speed of 10mm/s and friction coefficient of 0.3.