The production line includes insulating board preloading machine, insulating board loading machine, multi-layer hot press, vacuum suction plate unloading machine, automatic electrical control system, etc. The electrical control of the whole set of equipment adopts the real-time PLC touch screen control based on network technology. Through online detection and feedback, the closed-loop control, fault diagnosis and alarm are formed to realize the high precision and fully automatic production of insulating paperboard molding, so as to finally realize intelligent manufacturing.