The invention relates to an automobile bump test dummy neck calibrating device. The automobile bump test dummy neck calibrating device comprises a support and a pendulum hammer mechanism rotationally connected with the support. The pendulum hammer mechanism comprises a pendulum hammer which is rotationally arranged on the support and has one end used for installing a dummy neck portion. The calibrating device further comprises a shift rod arranged on the support for generating a bump with the pendulum hammer, a lifting mechanism arranged on the support for lifting the pendulum hammer and a control system used for controlling the lifting mechanism to lift the pendulum hammer to a needed height. The control system comprises a control apparatus arranged on the support for electrical connection with the lifting mechanism. The control apparatus comprises a control panel for inputting instruction information and a processor for processing the input information of the control panel and then sending an instruction to the lifting mechanism so as to control the operation of the lifting mechanism. The calibrating device provided by the invention is simple to operate, is time-saving and labor-saving and is stable in performance.