In this paper, the heating model of TC17 titanium alloy was established by dynamic measurement of temperature for the billet with deep buried thermocouple coupled with finite element simulation and the heating process was simulated. The results show that the total heat transfer coefficient is composed of radiation heat transfer coefficient and convection heat transfer coefficient, which can be obtained by mathematical calculation. The value of total heat transfer coefficient is related to the billet temperature and increases with the increase of billet temperature. The temperature rise curves at the center and radius of the billet were obtained after the simulation of billet with dimensions Ф500×500mm. The simulation curves were in good agreement with the measured curves compared with the actual temperature rise curves measured by thermocouples. Time required to reach the set temperature at the center and radius of the billet was 196 min and 166 min respectively. The heating test with small-size sample was done in β zone and the accuracy of the finite element model is verified by comparing the beta grain sizes of large-sized billets.