Abstract: The present invention relates to an automatic teaching method for a circuit board inspection system and comprises a data transform step of transforming mounter data into data file for teaching; a coordinate transform step of corresponding coordinates for data for teaching transformed through the data transform step transform step with inspection system coordinates; and a teaching step of programming contents to be inspected based on data for teaching such as part coordinates, part names, reference names and part angles that are formed through the data transform step and coordinate transform step. An automatic teaching method for a circuit board inspection system according to the present invention not only completes teaching operation within a short period of time, but also substantially reduces set up time for a new circuit substrate by enabling automatic teaching utilizing mounter data of parts mounted on a forgoing actual circuit substrate.