The cabin cover heating loading test-bed is one of the most effective ways to verify whether the aerodynamic heating and the aerodynamic loading will cause fatigue damage of the cabin cover. In the process of designing and building the test-bed, it is inevitable to encounter some problems such as lagging and overshoot of the temperature field on the surface of the cabin cover. In this paper, under the background of heating the canopy by AC heat exchange, through the way of data acquisition, controller design, simulation and re experiment, the cascade PID control scheme is applied to solve the above heating system problems, and compared with the conventional control scheme, the advantages of the cascade PID control in solving the temperature field control lag phenomenon are obtained.