现有基于正弦波磁光调制偏振光的方位失调角传递方法存在精度不高的问题，提出了一种利用原始光强信号中极值点信息实现方位失调角高精度传递的新方法。建立了基于任意位置光强信号求解初始光强的模型，推导了大角度范围内粗略失调角的计算公式并给出了实现方案，提出了在小角度范围内比现有方法近似精度更高的获取失调角信息的方法。仿真结果以及误差分析表明：利用该方法得出的方位失调角传递误差远远小于现有方法，为实现空间方位失调角高精度传递提供了一种参考。

As the precision of existing method based on sine wave magneto-optically modulated polarized light is low, a new high precision method of passing azimuth with the extremum of original light intensity signal is presented. The model of calculating initial light intensity based on discretional light intensity signal is established. The formula of calculating glancing azimuth in wide-angle range and its implemental project are provided and a new high precision method of calculating azimuth in small-angle range is proposed. Simulation results and system error analysis show that, the system error of the new method in the paper is less than those of the existing methods, and it provides a reference to passing spatial azimuth with higher precision.