The invention discloses a data exchange system for a production line, comprising: a data collection station, a PLC controller, a monitoring system, a data collection network, a switch, an Ethernet local area network, a database server, an IFIX centralized control server, and a centralized control terminal. The data collection station, The PLC controller and monitoring system are connected to the data acquisition network through industrial optical fibers, the data acquisition network is connected to the Ethernet LAN through a switch, and the database server, IFIX centralized control server and centralized control terminal are directly connected to the Ethernet LAN. The production line data exchange system provided by the present invention has a brand-new structural framework, complete networking integration capabilities, flexible application configuration modes, powerful real-time information processing capabilities, and rich display means, providing efficient application tools and reliable production process control for enterprises. Supported by information, real-time and accurate collection of production, equipment, quality, and consumption data of each on-site equipment is realized, and data services are provided for management at all levels of the enterprise.