Based on ABAQUS finite element software, in view of TC4 titanium alloy L profile, under the conditions of creep temperature of 500℃, 600℃ and 700℃, and creep time of 600s, 1200s, 1800s, the numerical simulation analysis of high temperature bending creep is carried out to study the influence of temperature and time on the springback after high temperature bending creep deformation of TC4 titanium alloy L profile. The numerical simulation results show that the stress relaxation effect of TC4 titanium alloy is significantly affected by temperature, when the temperature is 700℃, the residual stress after stress relaxation is reduced to below 50MPa; when the creep time is 600s, the residual stress after stress relaxation has been reduced to a stable limit value, continue to increase the creep time, the stress relaxation effect is not significant.