Road construction cross slope detection device

The invention relates to the technical field of distance measurement, in particular to a road construction cross slope detection device which comprises a mobile platform and further comprises a supporting and adjusting assembly, the position, corresponding to the supporting and adjusting assembly, of the mobile platform is provided with an opening, and the supporting and adjusting assembly conducts adjustment according to the angle detected by an angle sensor; according to the road construction cross slope detection device, the opening is formed in the moving platform, meanwhile, the supporting plate is arranged at the opening, namely, the supporting plate can be oppositely placed on the supporting adjusting assembly, and the fixing assembly can achieve the effect of rapidly fixing a box staff; meanwhile, the rotating angle of the supporting plate is controlled through the rotating assembly, so that after the angle sensor detects the inclination angle of the position where the moving platform is located, the