Abstract : In view of the production characteristics of large equipment products, an information system supporting the integration of production equipment is proposed, which aims to help large equipment manufacturing enterprises realize the integration of internal and external information of production equipment; the application effect shows that the system can improve the rapid response of the manufacturing system, improve the feasibility of production plan, reduce scrap rate, and improve the competitiveness of enterprises. Keywords : equipment integration; information support system; large equipment; manufacturing system 0. Introduction In the history of world industrial development, the development of equipment manufacturing industry is one of the industries that measure whether a country's national economy has a strong material foundation for sustainable development[1]. Large equipment also plays an extremely important role in the development of the national economy. It involves the equipment required by industries such as power generation, steel, chemical industry, shipbuilding, aerospace, engineering machinery and agricultural machinery. The production of large equipment belongs to large single-piece small-batch discrete production, which has the characteristics of order-driven production organization. The order-driven mode makes enterprises adopt engineering-to-order (ETO), make-to-order (MTO) or assembly-to-order (ATO) in actual production. The diversity of orders and the customization of products inevitably bring many problems, such as difficulties in formulating and executing production plans. Furthermore, the manufacturing of large equipment involves components that are mostly complex in structure and large in size, characterized by a "design, processing, and modification simultaneously" approach, leading to complex processing techniques, the use of numerous specialized equipment, and long processing cycles. Faced with a complex and ever-changing manufacturing system, improving the rapid response capability of the manufacturing system in large equipment manufacturing enterprises, effectively enhancing the feasibility of production plans, shortening delivery cycles, and reducing scrap rates are crucial issues that enterprises must address to improve their competitiveness. While well-known information systems such as ERP, PLM/PDM, and MES play a vital role in actual production, they cannot effectively acquire or process internal and external information from the production equipment at the workshop level. This results in unreasonable equipment processing task allocation and low equipment operating efficiency, thus hindering further improvement in the responsiveness of the entire manufacturing system. Equipment plays a crucial role in large equipment manufacturing systems, especially the operating performance and efficiency of certain key production equipment, which directly determine the rapid response of the entire manufacturing system. In actual production, most production equipment operates independently, resulting in information silos. Even if some enterprises use DNC (Distributed Controlled Numerical Control) for equipment integration in CNC workshops, they focus on the transmission of NC codes and fail to achieve effective integration and management of internal and external equipment information. The inability to obtain timely internal equipment information (such as equipment fault information) and the lack of integration between internal equipment information and external production information inevitably lead to uneven distribution of equipment load capacity, untimely handling of equipment faults, poor production plan execution, and high scrap rates, severely restricting the rapid response of the entire manufacturing system. 1. System Requirements Analysis and System Solution Proposal 1.1 System Requirements With the deepening development of manufacturing informatization, the informatization of discrete manufacturing enterprises has extended to the workshop level (such as MES), but information gaps still exist, such as low information integration between MES and SFC (System-Specific Factory). Currently, in ordinary equipment clusters, MES and SFC are essentially information gaps with virtually no information interaction; CNC equipment clusters have better information integration, but overall the information is relatively singular, failing to effectively integrate workshop-level information or even equipment information with upper-level information. The information gap arises because the SFC (System-Focused Factory) has a low level of automation, failing to effectively acquire and process equipment information and workshop production information. To address these issues, this paper proposes an information support system aimed at improving the information integration between the SFC and upper-level information systems such as MES (Manufacturing Execution System), enabling direct communication between upper-level managers and the workshop level to enhance the scientific and effective nature of management decisions. On one hand, it integrates with upper-level information systems like MES to disseminate management information such as production plans and instructions, as well as production guidance information such as processing diagrams and process flow charts, from the management level to the production site. On the other hand, the information support system more effectively collects and processes internal equipment information (operating status, fault status, load capacity, etc.) and external equipment information (i.e., on-site production information) in real time, submitting the processed information to upper-level management, thereby improving equipment utilization, operational efficiency, and enhancing the digital and visual management of the production process and equipment operation. (Full text of the research on information support system integration for large-scale equipment production equipment is available for download. )