As shallow metal mineral resources become increasingly depleted, advancing into the deep subsurface has become an inevitable strategic choice for safeguarding national resource security. However, the complex geomechanical environment characterized by "three highs and one disturbance" in deep mining poses severe challenges to conventional stoping methods in terms of safety, cost control, and operational efficiency. By reviewing typical engineering practices of deep mines at home and abroad and recent research achievements, the development status, key engineering technical difficulties, and main technological paths of deep metal mining were systematically summarized. The applicability and limitations of deep mining methods under different ore body occurrence conditions was analyzed, and it was pointed out that "large-scale mining, intelligent equipment, and continuous operation" constitute the core direction of deep mining technological transformation. For three typical types of ore body occurrence conditions, namely thick and stable ore bodies, fractured ore bodies, and thin veins in deep mining, technical systems were respectively proposed with high-stress coupled rock fragmentation and modular continuous stoping, environmental reconstruction and stress-relief mining, as well as precise blasting and waste-free efficient stoping as the core. Meanwhile, the application potential of non-explosive mechanized continuous mining technology in reducing disturbance and enhancing inherent safety was also analyzed. This study aims to provide a theoretical basis and technical pathways for the transformation of deep metal mining in China from traditional modes to intelligent and continuous technology systems, thereby contributing to the formation of new quality productive forces in metal mineral resource development.