The equation of oxidation growth stresses for the thermal barrier coating (TBC) was expressed based on Clark’s oxidation growth strain rate theory and Wagner’s parabolic kinetic model. The evolution regularity of oxidation growth stresses with time in the coating was predicted by calculation. The PSLS (photo-stimulated luminescence spectroscopy) method was also employed to test growth stresses in TBC samples after different oxidation time. Results show that the prediction of the growth stress model for the thermal barrier coating is consistent with the test results