In this paper, the current application status of gas turbine control technology is introduced, it presents the model free control theory and method in perspective of definition of model free control and model free adaptive control algorithms mainly existed and its advantages. This paper introduces some unsolved problems by using traditional control approaches. It gives reasons why the model free is suitable for the control of gas turbine. Afterwards, it describes how the model free adaptive control technology is applied to gas turbine and its related techniques in detail in this paper. In this part, it could provide theoretical foundation for applying model free control in actual gas turbine control system. Finally, conclusions and issues needed further research are put forward at the end of this paper.