Abstract: As the core of the steel manufacturing process, the intelligent transformation of ironmaking is critical for achieving national "dual carbon" goals and advancing high-quality industrial development. An integrated ironmaking technology based on information fusion and spatial reconstruction was proposed to address the persistent challenges in conventional production, including pronounced data silos, operational inefficiencies, safety concerns, rigid management structures, high energy consumption and significant emissions. Regarding information integration, an industrial big data platform encompassing the entire ironmaking process was established, and a closed-loop collaborative control system integrating "key index prediction, anomaly condition warning, and operational collaborative control" was created, thus facilitating the shift from local optimization at individual processes to global optimization across the entire production line. In spatial reconfiguration, large-scale centralized control technology for cross-process and cross-system applications, as well as distributed control and linkage mechanisms based on multi-modal data fusion were developed. An ironmaking integrated centralized control center was built, achieving a leapfrog transformation from "decentralized control" to "centralized management and control". For organizational innovation, a process-reengineering-based organizational reform method was proposed, which drove the transformation of the organizational structure from "hierarchical and fragmented mode" to "flat and integrated one", ultimately achieving significant improvements in management efficiency and optimized organizational configurations. The technology is successfully applied at Guangdong Zhongnan Iron and Steel Co., Ltd., constructing the world's first long-distance and large-scale ironmaking centralized control center. The results show that the coordinated cross-process management and control across a 5-kilometer range is enabled, 42 control rooms are consolidated into a single integrated center, 82 operating positions are streamlined down to 50, and personnel operational efficiency is significantly improved.