An automobile calibration device, comprising: a bracket and a sliding apparatus; wherein the sliding apparatus comprises: a guide rail, wherein the guide rail is installed on the bracket, 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, the second surface being provided with a second sliding groove and the first sliding groove and the second sliding groove being disposed in parallel; and a sliding assembly, 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, an installation plate, a guiding shaft, a first sliding member and a second sliding member, the first sliding member and the second sliding member being installed on the plate body; 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; and the second sliding member is fixedly installed on the installation plate, characterised in that the installation plate is installed on the plate body by using the guiding shaft, and the installation plate is movable along the guiding shaft relative to the plate body. a bracket and a sliding apparatus; wherein the sliding apparatus comprises: a guide rail, wherein the guide rail is installed on the bracket, 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, the second surface being provided with a second sliding groove and the first sliding groove and the second sliding groove being disposed in parallel; and a sliding assembly, 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, an installation plate, a guiding shaft, a first sliding member and a second sliding member, the first sliding member and the second sliding member being installed on the plate body; 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; and the second sliding member is fixedly installed on the installation plate, characterised in that the installation plate is installed on the plate body by using the guiding shaft, and the installation plate is movable along the guiding shaft relative to the plate body. a guide rail, wherein the guide rail is installed on the bracket, 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, the second surface being provided with a second sliding groove and the first sliding groove and the second sliding groove being disposed in parallel; and a sliding assembly, 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, an installation plate, a guiding shaft, a first sliding member and a second sliding member, the first sliding member and the second sliding member being installed on the plate body; 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; and the second sliding member is fixedly installed on the installation plate, characterised in that the installation plate is installed on the plate body by using the guiding shaft, and the installation plate is movable along the guiding shaft relative to the plate body.