In order to improve students’understanding of flight control and design theory, a 3D visual simulation experiment based on FlghtGear is established. The flight dynamics model is established with 12 dynamic equations, and the aircraft intuition design (AID) program is used to design the shape of a training aircraft and analyze its feasibility, and the PID module is used to design the longitudinal and lateral controllers of the aircraft. The results show that the lift curve of the constructed aircraft model is almost coincident with the Prandtl lift curve, the response of the control system is reasonable, and the variation curve of the flight simulation is corresponding to the dynamic visual scene; The flight simulation experiment has the characteristics of good economy, graphical results and strong openness. Combined with the course experiment, it can deepen students’understanding of flight control theory and improve the quality of teaching.