Abstract: Due to the present situation of coal mine emergency rescue process speech transmission was vulnerable to the interference noise environment the voice quality was poor it was inconvenient to wear ordinary headphones and microphone after rescuers wearing oxygen comprehensive cover this paper focused on applicatio n of research bone conduction technology with bone nerve muscles produce audible sound waves in coal mine emergency rescue speech acquisition transfer and the te chnology was fistly applied to develop bone conduction heard for coal mine emergency rescue audio collection and transmission solved the high quality of speech signal acquisition and transmission issues in coal mine disaster circumstance practice and application of equipment for coal mine emergency rescue teams showed that it co uld achieve function of clear communication strong ability to resist noise for bone conduction voice heard device after rescuers wearing full-face cover in dangerous env ironment real time control of the catastrophic ground command center could trap life condition and the scene of the accident state of underground persons and rescuers improve command rescue security and reliability.