in order to decrease the high false alarms effected by varies of edatopes and interferents when using traditional mental detector, which have only one type of sensor, to detect landmine, a new detect system with dual sensors based on electromagnetic induction (EMI) and ground-penetrating radar (GPR) technology was proposed in this paper. By combing data acquired from two types of sensors and extracting landmine features, this system can improve accuracy and reduce false alarms significantly, as well as overcome typical errors using ordinary mental detector. The design is introduced in detail and is verified effective by some tests.