The utility model discloses a back splint infrared meter reading instrument, relating to the field of electricity marketing. At present, the problems of manual record error and the like unavoidably appear in the process of obtaining the deposit degrees of an electric energy meter, and the work efficiency is low. The back splint infrared meter reading instrument comprises a shell, a power supply, a floodlight, a memory, a processor and an infrared meter reading module, wherein the middle of the shell is provided with a mobile terminal containing cavity; the upper edge of the shell is bent inwards; the right lateral wall of the mobile terminal containing cavity is provided with a data power plug; the shell comprises a main shell and a mobile shell; the mobile shell is arranged at the upper left position of the main shell, and is transversely U-shaped; a slide buckle is arranged at the opening of the mobile shell; a slide hole is formed in the main shell; a concave data power socket is arranged on the outer side of the main shell; the main shell comprises an upper shell and a lower shell; and a back splint inner cavity is formed between the upper shell and the lower shell. According to the technical scheme, the reading of the detected electric energy meter is obtained, and is immediately checked by being compared with a marketing system, so that easily generated errors in the process of manually reading or manually recording into the marking system are avoided.