Industrial equipment, such as computer numerical control machine tools, robotic arms, etc., need to be calibrated before application to achieve the best application effect. These corrections include origin correction, tool coordinate correction, work plane correction, etc. Currently, most of these calibrations are conducted manually. In this article, the robotic arm is taken as an example for industrial equipment to discuss how to use the vision system as an innovative work plane calibration device to perform automatic work plane correction for industrial equipment.