An automobile calibration device, comprising: a bracket; wherein the automobile calibration device further comprises a sliding apparatus, the sliding apparatus further comprising a guide rail and a sliding assembly; wherein the guide rail is installed on the bracket and is disposed in a horizontal direction, the guide rail comprising a first surface and a second surface perpendicular to each other, the first surface being provided with a first sliding groove, wherein the sliding assembly is configured to support a calibration member, the calibration member being configured to calibrate devices in an assistance driving system of an automobile, wherein the sliding assembly comprises a plate body, a first sliding member and a second sliding member, the first sliding member and the second sliding member being installed on the plate body; and the first sliding member is movably installed in the first sliding groove, the first sliding member being slidable along the first sliding groove; and the second sliding member is movably installed in the second sliding groove, the second sliding member being slidable along the second sliding groove, so that the plate body is slidable along the guide rail, characterized in that the second surface being provided with a plurality of second sliding grooves, and the first sliding groove and the plurality of second sliding grooves being disposed in parallel and extending in the horizontal direction, wherein the plurality of second sliding grooves is parallel to the second surface at intervals, each of the plurality of second sliding grooves being configured to install the sliding assembly, wherein the interior of the guide rail is further provided with a plurality of through holes with a predetermined shape in a horizontal direction. a bracket; wherein the automobile calibration device further comprises a sliding apparatus, the sliding apparatus further comprising a guide rail and a sliding assembly; wherein the guide rail is installed on the bracket and is disposed in a horizontal direction, the guide rail comprising a first surface and a second surface perpendicular to each other, the first surface being provided with a first sliding groove, wherein the sliding assembly is configured to support a calibration member, the calibration member being configured to calibrate devices in an assistance driving system of an automobile, wherein the sliding assembly comprises a plate body, a first sliding member and a second sliding member, the first sliding member and the second sliding member being installed on the plate body; and the first sliding member is movably installed in the first sliding groove, the first sliding member being slidable along the first sliding groove; and the second sliding member is movably installed in the second sliding groove, the second sliding member being slidable along the second sliding groove, so that the plate body is slidable along the guide rail, characterized in that the second surface being provided with a plurality of second sliding grooves, and the first sliding groove and the plurality of second sliding grooves being disposed in parallel and extending in the horizontal direction, wherein the plurality of second sliding grooves is parallel to the second surface at intervals, each of the plurality of second sliding grooves being configured to install the sliding assembly, wherein the interior of the guide rail is further provided with a plurality of through holes with a predetermined shape in a horizontal direction.