Abstract:The intelligent manufacturing can solve the bottleneck problems in various industries which has been treated as the main development strategy of China, Germany, and the United States. In this background, information physical systems (CPS) and digital twins (DT) as high-end application modes of the digital technology have played or are playing an increasingly important role in the field of manufacturing. However, many non-ferrous metal preparation and processing industries which include the copper and copper alloy preparation and processing have many characteristics such as diverse varieties, small scale, and scattered distribution. These characters trigger many bottleneck problems such as lack of top-level design in intelligent manufacturing, lack of material and processing information, obvious insufficient application of digital technology, and severe dependence on industrial software for product design, production, and processing monitoring when the intelligent manufacturing developed. The reasonable application of digital technology in the manufacturing industry can solve the above problems. Taking the beginning and development of intelligent manufacturing of precision copper tubes as an example, this article briefly introduces the relevant work carried out by the research team in the intelligence of copper tube casting and rolling process in the past two years. From the perspective of the application of digital technology in intelligent manufacturing of copper tubes, it mainly elaborates on the research progress of microstructure uniformity based on big data processing, the research of the horizontal continuous casting mold failure based on big data analysis, the temperature field calculation system of the horizontal continuous casting based on finite difference method, the optimization of the continuous casting process based on machine learning, and interface heat transfer calculation based on artificial intelligence algorithms. The application of digital technology in precision copper tube manufacturing, especially in the horizontal continuous casting process, introduced in this article will serve as the foundation for the intelligent manufacturing of the copper tube casting and rolling process, and can also provide direction and ideas for subsequent intelligent foundation and application research.