Building floor height range finder

The utility model discloses a building floor height range finder, and particularly relates to the field of building engineering, the building floor height range finder comprises a laser range finder, the surface of the laser range finder is provided with a laser emission hole, the surface of the laser range finder is provided with an adjusting device, the adjusting device comprises an extrusion plate, and the extrusion plate abuts against the laser range finder. A first bolt is rotatably connected to the end, away from the laser range finder, of the extrusion plate, a fixing plate is in threaded connection with the surface of the first bolt, the fixing plate abuts against the laser range finder, and a placement plate is fixedly connected to the surface of the fixing plate. And then the detection of the building floor height is completed in cooperation with a tape, so that the situation that a worker needs to squat and get up for multiple times when detecting the building floor height is prevented, and the eff