In recent years， the large-diameter borehole rescue technology has been successfully applied in mine disaster rescue for many times. However， the construction efficiency of drilling rescue is affected by the complexity of stratum， the lack of equipment and process adaptation. This paper takes large-diameter borehole rescue equipment and large-diameter rapid drilling technology as the main line， sorts out the main problems existing in borehole rescue technology at present， and puts forward corresponding countermeasures. Including the research and development of dual power head drilling rig， drilling with casing technology， high-efficiency casing welding technology， down-the-hole hammer drilling technology and reverse circulation drilling technology， etc. Hoping to provide sugestions and technical foundation for large-diameter borehole rescue and further improve the construction efficiency of borehole rescue and accelerate the construction of scientific mine rescue system.