When detecting and tracking the low-sky targets (lower than 50 m) such as boats, sea-skimming missile and airplane, visible and infrared electronic optical (EO) systems could be highly affected by atmospheric refraction. The distance from the apparent horizon to an observer can be lengthened or shortened, especially mirage will increase the false alarm odds and the disturbance of detecting and tracking of targets. This paper established optical propagation evaluation model based on air-sea flux algorithm and ray tracing program. Using EO detection trial data in the Northern Yellow Sea, from November to December, 2009, evaluated characteristic refractive heights, the maximum inter-visvion ranges (MIVR) as well as some relevant EO propagation parameters, simulated the marine multi-objective image, and has verified the model performance. The model accuracy of MIVR is better, the target image on different distance is simulated accurately.