The utility model provides a power frequency excitation detector for shaking response includes host computer and the pressure regulating unit and amazing probe unit is connected with host computer electricity at least, the host computer include the ACDC voltage conversion module and, power supply circuit, the pressure regulating unit be slide rheostat, slide rheostat adoption partial pressure formula connected mode access power supply circuit, coil winding, connecting plate A, connecting plate B and probe that amazing probe unit includes the iron core, is connected with the slide rheostat electricity, coil winding twine on the iron core and fix through connecting plate B, and connecting plate B's the other end passes through the screw to be connected with connecting plate A, vertical fixation in connecting plate A's the other end of popping one's head in, the utility model provides a detecting instrument operation is safe simple, and the vibrations continuity and the stationarity of production are good, and it is reliable, accurate consequently to detect aero.