Abstract: To solve the problem that the existing simulation system only qualitatively describes the Moon-based observation image, an image simulation method based on rigorous imaging model for Moon-based platform was proposed, and the quantitative relationship between image point and object point was established. The method was applied to the simulation of observation geometric image and radiation energy image. Based on long-time series simulation results, the effect of lunar orbit on geometric images and radiation energy images was further analyzed and summarized. The results show that this image simulation method based on the rigorous imaging model is feasible, and accurately expresses the image characteristics that vary with the characteristics of the lunar orbit. This method lays a foundation for the application of Moon-based observation images, and has great significance for the subsequent parameter design of different types of Moon-based sensors.