Abstract:In order to realize the steel pipe information tracking automatically,a steel pipes number automatic identification system was designed combining with the site environment and task requirements.The system’s hardware configuration and software design were mainly described. In order to realize automatic identification of the steel pipe numbers, PLC was used to control servo controllers, two groups of servo motors were used to drive the mechanism, achieving automatic positioning of the scanner, according to the requirements of different pipe diameters, and then the scanner read the barcode. It has solved the problem of pipe on-line and real-time tracking and process traceability. After a large number of site commissioning, the system has been successfully applied in the production field.