Tunnel deformation measuring device based on laser range finder

The utility model relates to a tunnel deformation measuring device based on a laser range finder. The tunnel deformation measuring device comprises the laser range finder, a laser range finder fixing base, a rotating platform, a supporting rod and a base. The supporting rod is lengthened through threaded connection. A protruding threaded head is arranged below the rotating platform, so that the rotating platform is fixed on the supporting rod. A rotating bracket is arranged on the rotating platform. The rotating bracket is connected with the laser range finder fixing base through a rotating shaft. The tunnel deformation measuring device provided by the utility model can realize in situ measuring, and has the advantages of simple structure, easy disassembly, high accuracy, long-distance ranging and the like.