Highway subgrade settlement detection device

The utility model relates to the technical field of subgrade settlement detection, and discloses a highway subgrade settlement detection device which comprises supporting rods, two bases and a subgrade, the two bases are located on the left side and the right side of the subgrade, the upper surfaces of the two bases are detachably connected with the supporting rods, and the supporting rods are detachably connected with the bases. By arranging the supporting rods, the roadbed, the transverse rod, the first sliding blocks, pull rods, limiting blocks, first springs, iron chains, clamps, clamping blocks, fixing blocks, clamping grooves, nails, openings, dial gauges, scale marks, barbs, bases and screw rods, the functions of being easy to operate and convenient to use are achieved; through mutual cooperation of the structures, detection can be carried out according to different road sections, vehicle driving is not affected during detection, and the subgrade settlement depth can be accurately detected through the