Aiming at the monitoring problem about Concrete Forecast Production Line, a central monitoring system based on computer configuration software and industrial Ethernet network is designed. The technical process and station set are analyzed, and the hardware architecture is built, including computer centralized management and PLC decentralized control. With the development of monitoring system by the ForceControl, the Human Machine Interface is designed and the control policy and script program are also introduced. Practice proves that the system is stable, and the adaptability and practicability are good, can meet the practical needs of users.