Height measurement device

The invention discloses a height measurement device. The height measurement device comprises a support; a driving unit; a force measurement rod; a touch head; a forcemeter, a position detector connected with a controller, and the controller. The driving unit comprises a driving main body connected with the support and a moving part which can move up and down, and the driving main body can move in the horizontal direction, and is provided with a ruler; the force measurement rod comprises a first rod body and a second rod body, the length of the first rod body is larger than that of the second rod body, the first rod body is connected with the second rod body, and the joint is connected with the moving part to form a lever structure which can move up and down; the touch head is arranged on the free end of the first rod body and is suitable for making contact with an object to be detected; the forcemeter is arranged on the moving part and is connected with the free end of the second rod body; a predetermined for