This paper describes the present situation of underwater electromagnetic field researches of ships abroad, emphasis introduce researches situation about development of test systems, technology of sensors, fact ship test, obtain data, modeling and analysis, ocean environment, and characteristic of targets etc. Enumerate electromagnetic field characteristic apply on vessel stealth control and weapon in water,and accumulate methods and experiences on vessels electromagnetic field researches, discuss on vessel underwater electromagnetic field research trait.%介绍了国外在舰船水下电磁场研究现状,重点介绍国外在测试系统研制、传感器技术、实船测试、数据获取、建模分析、海洋环境和目标特性等研究方面的进展情况;列举了电磁场特性在舰船隐身控制和水中兵器上应用,以及在舰船电磁场研究方面积累的手段和经验;讨论了国外对舰船水下电磁场研究的特点.
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