By analyzing the mirror interference principle and builds the mathematical model, and analyzes the relation between grazing angle and earth reflective factor, establishing the Brewster angle. Herein, we design the super low level high-parabolic trajectory and the discrimination criterion of mirror interference, and the control instruction gray prediction with mirror interference. The simulation and actual flight test results show that the super low level high-parabolic trajectory can avoid the mirror interference when it is close to or reach the Brewster angle at the initial stage of trajectory, and the mirror interference will be suppressed and consequently the expand the short extent of killing zone at the end of trajectory.