A new turbulent combustion model to predict thermal flow in the impinging jet flame, which is based on mixing controlled reaction rates, is developed. The main feature of the proposed model is that the rate of the combustion will be determined by the rate of dissipation of eddies and concentration of fueloxygen in the flame. The proposed model is proved to be the most effective in the practical computation of impinging jet flame during line heating process by comparing calculated gas temperature with the measured one.