To address the problems of inadequate precision and unstable deception angles of cross-eye jamming,a new method of angular deception jamming based on the three-tuple antenna is proposed.The method adopts the three-tuple structure to improve the focusing performance of the linear array,significantly reduces the deception disturbance of the symmetric peak of the linear array,thus obtaining a more stable and accurate deception direction.At the same time,this method uses adaptive genetic factor optimization to form stable deception effects by constraining the waveform and the direction of arrival,and increases the coverage of angle deception.The effectiveness of this method is verified through simulation results.