Efficient light path reflecting mirror debugging device

The utility model discloses a high-efficiency reflex light path reflector debugging device, which comprises a tool base, an adapter, a screw and a cross scribed line reticle, a light through hole is formed in the center of the tool base, a mounting table is arranged at one end of the tool base, a plurality of small bosses are uniformly distributed at the other end of the tool base, and a screw mounting hole is formed in each small boss; a light through hole is formed in the middle of the adapter; through holes matched with the screw mounting holes in the small boss are uniformly distributed in the adapter; the tool base and the adapter are connected and fixed through screws; and the cross scribed line reticle is arranged at the light through hole of the adapter and is fixedly connected with the adapter. According to the utility model, a traditional plane mirror and a small-hole tool are combined into one, so that repeated replacement during debugging is avoided, replacement errors and dependence on the machin