Abstract: In order to weaken the negative influence of imaging seeker blind area on the impact performance, the effect on trajectory parameters from rudder angle was analyzed, and a control method based on rudder scheme was proposed. Based on this method, the selection principle of the rudder scheme was discussed, and four feasible variation rules were given to simulate and compare with the effect of the situation when the rudder angle was assigned as a constant in blind area. Then the better two in the four variation rules were optimal designed to achieve better effect. Results of simulations illustrate that the method can improve the hit accuracy of missiles, and decrease the angle of attack and normal overload of the impact point.