“极低频探地（WEM）工程”是国家发展和改革委员会批准的“十一五”国家重大科学技术基础设施建设项目之一，用于资源探测和地震预测及其他前沿科学研究。 文章对工程项目背景、建设内容、关键技术和试验成果作了全面介绍，在此基础上，对工程的应用前景作了展望。

The ELF (extremely low frequency) engineering project for underground exploration is one of the major national science and technology infrastructure projects approved by Chinese government,which will apply to resource exploration, earthquake predication and other frontier sciences. The background, construction content, key technology and test results are introduced. On the basis of which, the application prospect of the project are expected.

卓贤军(1970—),男,浙江奉化市人,高级工程师,主要从事极低频电磁技术的研究