The numerical simulation method by EASY% Ro is used to simulate and reiterate the thermal evolution history of the No.2 coal mine in eastern Fengfeng,and the characteristics of the coal's generation and evolution are discussed.The coal mine in eastern Fengfeng,which is influenced by the structure movement and the magmatic activity,is thought to experience two stages that the gas generated.In the early stage,it is mainly affected by the region plutonic metamorphism,and the organic matter of the coal is generated gas under the plutonic metamorphism function;while in the late stage,it is influenced by the magmatic activity,and the coal seam in the area is further deteriorated,then coal-seam gas is generated again.Accordingly,gas-bearing property and its major control factors in the research area are analyzed,such as the lithology of the coal reservoir roof and floor,the characteristics of the distribution,the geologic structure,the magmatic intrusion and the hydrogeological conditions and so on,which lead to uneven distribution of the methane content of the coal-seam in the plane and the section planes.