Laser range finder with protection assembly

The utility model discloses a laser rangefinder with a protection assembly, which comprises a rangefinder main body and an end hole arranged on the surface of the top end of the rangefinder main body, the inner side of the end hole is provided with a laser detection head, the laser detection head can emit laser to realize laser ranging, and the top end of the rangefinder main body is provided with the protection assembly. The protection assembly comprises a movable frame plate, a rotary cover plate, a connecting block and a side shifting block, and the movable frame plate is arranged on the top surface of the range finder main body and can slide up and down along with the side shifting block; through the arrangement of the protection assembly, the end hole can be effectively shielded and covered through the protection assembly in the storage or carrying period of the laser range finder, external foreign matters and dust are prevented from entering the inner side of the end hole to be in contact with the laser