Aiming at the high research significance of AI simulation flight research, it is pointed out that the application platform Gym is combined with Flightgear flight simulation software to construct an AI simulation flight training platform. Through platform optimization, the difficulty coefficient of flight action can be continuously increased, and the reward mechanism and neural network can be designed to realize the interactive closed-loop feedback of training data from AI control simulation flight software to AI. The training results verify the effectiveness of the training platform.