Road construction surveying device with horizontal adjusting function

The utility model discloses a road construction surveying device with a horizontal adjusting function. The road construction surveying device comprises a bottom plate, sliding plates are arranged at the tops of the left end and the right end of the bottom plate, supporting plates are installed at the upper ends of the sliding plates, plate openings are formed in the left end wall and the right end wall of each supporting plate, and screws penetrate through the front end walls of the left end and the right end of each supporting plate. A middle plate is arranged at the top of the supporting plate, a plate groove is formed in the middle plate, a sliding block is installed on the inner side of the plate groove, and a lead screw is arranged in the middle of the sliding block in a penetrating mode; and a position repairing mechanism is mounted at the top of the sliding block. According to the utility model, the graduated scale is marked on the end side of the turntable, when the turntable rotates, the pointer and