研究煤矿井下职业健康危害因素的产生源头、传播途径以及安全防护等三个逻辑机理,提出:三段式防治机理,来消除或弱化煤矿井下职业健康危害因素,即,第一段,消除、弱化职业危害因素源头的种类、数量或源头产生职业健康危害因素的能力;第二段,采取措施,及早阻断职业健康危害因素传播途径;第三段,强化职业危害因素的个体防护;推进“以人为本、预防为主、综合治理”的工作水平。 This paper studies three logic mechanisms of origin, route of transmission and safety protection of occupational health hazard in coal mine. It puts forward three-stage prevention and control mechanism to eliminate or weaken the occupational health hazard factors in coal mine. That is, the first paragraph of elimination, weakening The second is to take measures to prevent the transmission of occupational health hazards as soon as possible; the third paragraph, to strengthen the personal protection of occupational hazards; promote the “ People-oriented, prevention-based, comprehensive management ”work level.