Abstract-Considering the current problems of low realtime performance for data acquisition and poor monitoring capacity in the production line monitoring system, this paper introduces a production line visual monitoring system, this system introduces the radio frequency identification technology (RFID) into the production line, and realizes the integration of RFID acquisition technology and production line control. This paper presents the system's working principles, architecture and design schemes of the software and hardware, and studies its implementation method and key technologies. The system adopts ARM9 and the embedded Linux operating system to intelligentize the operation terminal, and realizes the display interface more beautiful. The realization of multi-master methods of intelligent nodes via CAN field buses makes the system more stable. Its software and hardware design scheme, key technologies and implementation are presented also. The experimental results demonstrate that the system can be operated steadily and will have a vast application prospect.