The 12th International Workshop on Solid-State Quantum Computing (IWSSQC) is co-hosted by Nanjing University (NJU, Suzhou Campus), South China Normal University (SCNU), Quantum Science Center of GD-HK-MC GBA (QSC), and The University of Hong Kong (HKU). This three-day event serves as a core platform for cutting-edge idea exchanges, top-tier achievement sharing, and industry collaboration in the global solid-state quantum computing field. Top scholars, industry elites, and representatives from relevant enterprises around the world gather here to discuss the development achievements in solid-state quantum computing. With cross-sector collaboration, all parties pool global wisdom to outline a grand blueprint for the innovative advancement of quantum science. The opening ceremony kicks off solemnly, where academic resonance intertwines with the enthusiasm for exploration. Every frame captures the dedicated efforts of researchers and enterprise representatives, marking the progressive moment as quantum technology steps into a new phase of industrialization and scaling!