Aiming at the problem of the positioning deviation of the composite material surface metallization spraying equipment when spraying the workpiece, in order to ensure the processing quality, the robot vision calibration control algorithm is designed to complete the positioning calibration during the thermal spraying process. The vision calibration system is composed of a control system, a robot system, a vision system and a laser rangefinder. When the system is started, the laser rangefinder transmits the measurement data to the control system in real time, and the XYZABC position compensation data is processed by the control algorithm and transmitted to the robot to complete the vision calibration. Take composite material surface metallization automatic spraying equipment as an example, the result is that the robot system’s planar motion radius is greater than or equal to 2.55m, the height direction motion distance is 3m, the repeat positioning accuracy is ±0.05mm, and the mold positioning accuracy is ±0.08mm. Finally, the composite material surface metal is completed. Chemical spraying operations.