An electromagnetic pick-up grip device is designed in the paper. The device is used to realize mutual attraction of the spot galvanized solenoid with iron core by using principle of electromagnetic induction. Thus, it can realize effective contact between sensor and testing specimen. It belongs to nondestructive testing support equipment. The device has the following characteristics of high accuracy, easy operation and continuous test of multi-sensors and multi-specimens because it adopts electromagnetic pick-up, step-motor controlling and recoil of spring device.