随着煤炭工业的发展，煤矿事故时有发生，其中很多事故是由于隐蔽致灾因素导致的。为了降低事故发生概率，保障矿工生命安全和提高煤矿安全生产水平，开展煤矿隐蔽致灾因素普查工作意义重大。本文以山西孟家窑煤矿为研究对象，通过实地调查及资料收集，查明了煤矿隐蔽致灾因素，既加强了煤矿地质工作，同时也为有效预防煤矿事故发生提供依据。结果表明，断层、裂隙、褶曲，采空区、废弃老窑及封闭不良钻孔等因素为隐蔽致灾因素。陷落柱，古河床冲刷带、天窗等不良地质体、冲击地压不是矿井内隐蔽致灾因素。

With the development of coal industry, coal mine accidents occurred frequently, many of which were caused by hidden disaster-causing factors. In order to reduce the probability of accidents, ensure the safety of miners ' lives and improve the level of coal mine safety production, it was of great significance to carry out the survey of hidden disaster-causing factors in coal mines. In this paper, Mengjiayao Coal Mine in Shanxi Province was taken as the research object. Through field investigation and data collection, the hidden disaster-causing factors of coal mines were identified, which not only strengthened the geological work of coal mines, but also provided a basis for effectively preventing coal mine accidents. The results showed that faults, fissures, folds, goaf, abandoned old kilns and poorly sealed boreholes were hidden disaster-causing factors. These were not hidden disaster-causing factor in the mine including collapse column, ancient riverbed erosion zone, skylight and other unfavorable geological bodies, and rock burst.