Abstract: Aiming at the complex conditions that explosive gas coexist and coal has the risk of spontaneous combustion in coal mine, through studying parcel effect, oxygen barrier effect and its influence factors of micro encapsulation for methane as well as long-chain alkanes, it developed a resistant explosion extinguishing material and its production technology, the material’s characteristics included neutral pH value, thoroughly biodegradable, completely soluble in water, non-toxic, ecotype, micro encapsulation, and high molecule.