在军事上，金属探测器可用于探测金属地雷；在安全领域，可以探测随身携带或隐藏的武器与作案工具；在考古方面，可以探测埋藏金属物品的古墓，找到古墓中的金银财宝与首饰或其他金属制品；在工程中，可用于探测地下金属埋设物，例如管道、管线等；在矿产勘探中，可用来检测和发现自然金颗粒；工业上，可用于在线监测，如去掉棉花，煤炭，食品中的金属杂物等。
In military, metal detectors can be used to detect metal mines; in the field of security, they can detect weapons and tools that are carried or hidden; in archaeology, they can detect ancient tombs buried with metal objects, find gold, silver, treasures and jewelry or other metal products in ancient tombs; in engineering, they can be used to detect underground. Metal buried objects, such as pipelines and pipelines, can be used to detect and detect natural gold particles in mineral exploration, and can be used for on-line monitoring in industry, such as removing metal impurities from cotton, coal, food, etc.