The utility model discloses a milemeter verification device. A control box comprises a digital signal processor (DSP) control module and input and output terminals. A coded disc with a magnetic steel piece is located on a rotating shaft of a stepping motor and rotates driven by the stepping motor. A Hall sensor is located beside the coded disc with the magnetic steel piece, is connected with the DSP control module and transmits a low level impulse signal generated by the Hall effect to the DSP control module which is connected with the stepping motor through a motor driver in order to control the rotation of the stepping motor and further connected with the input and output terminals. The milemeter verification device can drive the rotation of a milemeter of a vehicle according to a required driving speed and transmission ratio of an output shaft of the vehicle within a determined range of the driving speed, records the driving speed, calculates driving hauls and verifies the correctness of the milemeter of the vehicle and the milmeter function of a vehicle-mounted inertia location orientation navigation device.