In order to prevent the occurrence of coal mine production site accidents，the application of information technology in coal mine mining was discussed through literature data，summary，and induction，and the meaning and main types of coal mine enterprise informatization were clarified in detail against the background of production informatization. The research shows that the key technologies of ″Internet +″ coal mine safety informatization include the Internet of Things，cloud computing，and big data，which provide efficient and scientific decision-making basis and technical means for coal mine safety. In order to support big data generated by the Internet of Things for coal mines，the ″Internet +″ coal mine safety information application framework composed of an information perception layer，data transmission layer，cloud computing resource layer，application service layer，and user interface layer is proposed. In addition，a construction model based on a proprietary cloud was proposed to make the system elastic and scalable.

informatization  /  coal mine safety production  /  Internet +  /  cloud computing  /  big data