Abstract: An introduction is given of γ-Re_θ transition model,and the experimental correlation which has not been published by Menter is supplemented in this paper.In the trip software of China Aerodynamic Research and Develop Center（CARDC） the experimental correlation is demarcated base on the experiment data of flat.Some conclusions about the effect experimental correlations on transition position are obtained.The modified binding mode with SST turbulent model improve deflection of friction drag force coefficient.