Abstract: At present, the air defense, anti-ship, air-to-ground missiles all commonly utilize active monopulse radar homing mode, and such precise tracking guidance radar weapons make serious threat to airborne platforms, large ships, and important ground based military targets. To deal with this threat, there is no doubt that the combination of electronic attacks and hard-kill weapons are the best choice, but there are many technical difficulties in the air-based platforms and ships to launch electronic attack to monopulse tracking guidance radar. Aiming at this, the feasibility of electromagnetic interference in polarization field is studied. The mechanism of electromagnetic interference in polarization domain, interference conditions and interference method is analyzed. The results show that the geometry and the reflecting surface and the radiator antenna system are not perfect, radiator off the point and the diffraction phenomenon of reflector caused the cross polarization, radome on incident wave uneven insertion phase delay and transmission coefficient, that the direction of the antenna radome boresight shift appears, increasing the cross polarization level, so the radar precision guided weapon is easily affected by electromagnetic interference in polarization domain. This paper proposes a new electronic attack technique and analyzes the polarization jamming mechanism, jamming condition and methods, and simulates the important technique. This technique urgently needs to enter into actual equipment, and should be attached importance by industry sector.