At present the simulation of airport lighting in the flight simulator is lack in different meteorological conditions. The paper use point by point calculation method is established based on the pilot visual row light mathematical model and realize the simulation of the navigation lamp and optical properties. The paper put forward a kind of real-time dynamic method of snow simulation based on OpenGL in the large scene roaming system, and give the simulation scenarios of pilot vision in different degree conditions. In the runway II category operation mode. Simulation experiment shows we found a simulation model of the aids to navigation in the light system according to the dimensional theory. Optical properties of all kinds of aids to navigation lamps of the airport can be real simulated. The navigation lights in different conditions landing or departure of the whole process of the real-time visual simulation can be better realized. The whole system works well, vivid and real-time.