Abstract: To remove the dissymmetry of horizontal movement speed of monitor image caused by image guided missile adopting guided search and the search law with one-dimension visual effect, pitching and yawing signals of the search law with one-dimension visual effect are designed again under the condition of ensuring no blind area and only horizontal movement of monitor image. Simulation results showed that adopting the improved search law and guided search can remove the dissymmetry of the movement of monitor image and original advantages are maintained, which provides a foundation for shooter to acquire and capture targets.