According to the development tendency of pulp molding product automatic production line, to improve the stability, efficiency and working condition in pulp molding conveying process, on the analysis of the pulp molding suppression, conveying, drying craft, an automatic control system for pulp molding product conveying equipment based on PLC was designed. For the characteristic of system running was segmented, expert system control scheme was used to optimize the design of system software, a method to save the system data sectional was come up, and the corresponding hardware and software system design were completed. The running results show that the system state is stable, failure has occurred fewer times, product qualified rate is improved greatly. The system has a high conveying efficiency, meeting the beat of pulp molding suppression and drying craft well, which improve the market competitiveness of pulp molding product.