Abstract: Adopting neural networks,and selecting 17 appraising factors including topography and landform,engineering geological condition,structural condition,avalanche,landslip,mudflow,surface collapse,surface crack,ground subsidence,land occupation and destruction,discharging of solid rejectamenta,waste water and waste liquid,water gushing-out of mine;drying up of water resources;spontaneous combustion of gangue;scale of enterprises;difficult degree of eco-environment restoration and governance,the entire province ...