Abstract: Land degradation,the primary problem which threaten human survival and development,has aroused wide attention of government,especially the mining area land degradation which is also an academic research hotspot and policy management difficulty.In view of this,based on the theoretical analysis,this article select the Wuhai mining area to conduct an empirical analysis through constructing econometric models,the results show that:① according to theoretical analysis of the results,the western mining area land(grassland) degradation is a combination of the integrated impacts of natural environment factors(e.g.regional climate,geomorphology,geology,water,vegetation) and human factors(e.g.mining,population growth,land use),which natural environmental changing is the external conditions and human factors are the internal reason;②the empirical results show that the top three driving factors of grassland degradation in Wuhai mining area are coal mining and regional economic development,water conditions and regional drought degree.The elastic coefficient and impact sensitivity are 0.138,0.016 and 0.016 respectively;③the thorough analysis indicates that,the index of Wuhai mining area land degradation sort as follows according to the sensitive degree:regional GDP(-0.174),fixed assets investment(-0.174),coal mining area(-0.173),population(-0.173),coal mines(-0.158),sunshine duration(0.127),precipitation(0.069),urbanization rate(-0.059),average relative humidity(-0.043)and annual average temperature(0.031).It is suggested that we should regulate its dominant driving factors by transforming the pattern of economic development,optimizing the investment in fixed assets and limiting the coal mining area and yield etc,thus reversing the increasing tendency of the mining area land(grassland) degradation.