Abstract: Taking the gas drainage system as the platform and the industrial pointer instrument as the design object, this paper proposes and designs an automatic identification device for industrial instruments, which uses the camera to obtain the instrument image, obtains the instrument reading and local display through image recognition technology, and has CAN bus transmission. It solves the problems that a large number of industrial instruments in the gas drainage field need manual inspection, and do not have the data communication ability, and cannot communicate with the existing gas drainage system, and the purpose of accelerating the construction of intelligent mine has been achieved.