Abstract: In order to curb the occurrence of coal mine accidents from the source and improve the safety management level of coal mines, it is necessary to actively implement general investigation works of hidden disaster-causing factors in coal mines to ensure safe production. Taking Cuimu Coal Mine as the research background and the mining of No. 3 coal seam as the research object, based on data collection, on-site investigation, exploration and verification, and comprehensive research, the geometric and attribute characteristics of coal mine hidden disaster-causing factors are detected, described, predicted, and evaluated to assess their danger degrees. The research shows that there are disaster-causing hidden dangers exist in terms of hydrogeology, fire disaster, gas, rock burst and others in Cuimu Coal Mine.