Electric vibration test device

The utility model discloses an electric vibration test device which comprises a table top, a sliding hole is formed in the middle of the upper end face of the table top, a sliding rod is arranged in the sliding hole in a sliding mode, a fixing ring is fixedly arranged on the outer wall of the sliding rod, and a first spring is arranged on the lower end face of the fixing ring. The lower end of the first spring is fixedly connected with the table top, a supporting plate is arranged on the upper end face of the table top, a guide hole is formed in the outer wall of the supporting plate, a lifting block is arranged in the guide hole in a sliding mode, a lead screw is arranged on the lifting block, the two ends of the lead screw are rotationally installed on the inner wall of the guide hole, and the lead screw is in threaded connection with the lifting block. And the upper end of the lead screw penetrates through the supporting plate and is provided with a hand wheel, so that a user can rotate the lead screw by r