选择高Ｖｅｒｄｅｔ常数的磁光材料、增加光束环绕电流的环路数是提高磁光电流传感器灵敏度的主要方法。本文介绍了利用频率分离的比较测量法来消除温度对高Ｖｅｒｄｅｔ常数铁磁性磁光材料的影响，设计了双环路及多环路块状传感头结构，并对双环路结构传感头进行了实验测试。 Select the high Verdet constant magneto-optical material, increasing the number of light beam loop current loop is to improve the magneto-optical current sensor sensitivity of the main method. This paper introduces the use of frequency separation of the comparative measurement method to eliminate the temperature on the high Verdet constant ferromagnetic magneto-optical material, designed double loop and multi-loop block sensor head structure, and the double loop sensor head structure Experimental test.