The winding process of U912002-2 12 pin network transformer was studied, and a fully automatic network transformer winding platform based on PLC was designed.According to the winding process, the overall function and structure scheme of the winding platform were determined.The selection and construction of PLC, servo motor, servo driver and other functional components and control system hardware were completed.Finally, the control program was written with XDPPro software to complete the human-computer interaction interface design, the action sequence and coordination problems of the winding head were solved.Compared with the original manual winding mode of the enterprise, the winding efficiency of the platform is improved by 3 times to 4 times, reaching 120 pieces/h to 130 pieces/h, and the product qualification rate is more than 96%.