Abstract: The core of intelligent beam field is to improve efficiency, and digital twin is the best link between real physical beam field and digital virtual world. The combination of the two plays an important role in driving intelligent beam field to achieve comprehensive intelligent manufacturing. There are problems in 3D model visualization, multisoftware data exchange, application of prenatal and postnatal, intelligent decision support and so on. The functional requirements of digital twin intelligent beam field are comprehensively analyzed from four aspects: real physical beam field, virtual beam field, beam field control system and beam field twin data. On this basis, the system architecture design of digital twin intelligent beam field is proposed, and the physical entity layer, twin model layer, data layer, collaborative service layer and application layer of the system are studied and elaborated, which can provide reference for the construction of digital twin intelligent beam field in the future.