Disclosed in the invention is a vibration exciter support seat comprising a support seat body, first electromagnetic elements, and a power line. A cavity is formed in the lower part of the support seat body; the first electromagnetic elements are arranged in the cavity; and the power line extends into the cavity and is connected with the first electromagnetic elements. The first electromagnetic elements in a power-on state enable the vibration exciter and the vibration exciter support seat to be limited firmly on a ground flat iron plate, so that the vibration exciter can be used for testing conveniently. Moreover, the first electromagnetic elements in a power-off state enable the vibration exciter and the vibration exciter support seat to move freely on the ground flat iron plate, so that the vibration exciter can be placed at a proper position. During the moving process of the vibration exciter support seat, the vibration exciter support seat can move conveniently, thereby reducing the physical labor of the tester, effectively reducing the time of moving the vibration exciter support seat and improving the testing efficiency.