Combined with the development and application of Coal Mine Gas Protrusion and Explosion System (CMGPE), this paper introduced the main ideas, key technologies, system functions, and application effects in the intelligent monitoring, analysis, display and early warning of coal mine gas protrusion and explosion based on Digital Mine technologies. The protrusion amount of mine gas and the occurrence of dynamic phenomenon of gas outburst are influenced by the factors of geology, crustal stress, and mining condi...