According to the existing problems of fire control information of the current beyond visual range attack process, in order to improve the efficiency of beyond visual range air to air missile combat, two improvements was put forward: the tip of target maneuvering escape angle and the cue of optimal firing angle. The simulation results showed that by increasing the target maneuvering escape angle could reflect the facility value of target escape missile attack area, and by increasing the cue of optimal firing angle, maximum distance of missile attack could be increased.