Road surface track laser detection device

The utility model relates to a road surface track laser detection device for detecting road surface track indexes, which is made up of a bird-view camera arranged above the rear part of a system carrier vehicle, a line laser with an angle change measuring sensor arranged at the rear lower part of the carrier vehicle, and a system support connection rack body. In practical work, projections of light beams emitted by the line laser onto the road surface form laser scattered rays, and by means of camera imaging and with the help of digital image processing and calculation, accurate and objective information about depth of road surface track, sizes of left and right tracks and the like can be obtained. The utility model has the advantages of reasonable design and structure, convenient use, high measurement precision and the like.