The invention provides a geomagnetic induction device and a detection terminal. The detection terminal comprises a geomagnetic induction apparatus, a controller, a power supply, and an amplification circuit. The geomagnetic induction apparatus comprises a geomagnetic induction interface, an enabling circuit, a signal input circuit, and an inductor. The geomagnetic induction interface is connected with the enabling circuit and the signal input circuit. The inductor is disposed at the geomagnetic induction interface, and the enabling circuit is connected with the controller. The controller is connected with the signal input circuit. During position changes, the inductor generates an electromagnetic induction signal, and the input circuit receives the electromagnetic induction signal and generates a first electric signal. The enabling circuit receives the electromagnetic induction signal, and generates an enabling signal, and the controller receives the enabling signal and then receives the first electric signal. The above setting can effectively solve problems that the geomagnetic induction apparatus is low in sensitivity, false triggering is caused in an application process, and the geomagnetic induction apparatus cannot work in a low-temperature environment.