Abstract: From the perspectives of working face,overburden and surface,clarifying the damage degree of highintensity mining and further developing mining damage control technology are conducive to solving the problems of serious surface damage and fragile ecological environment in western mining areas,and promoting the coordinated development of efficient coal mining and environmental protection.Based on this,nine evaluation indexes including mining parameters of working face,overburden hardness coefficient and surface loose layer thickness are selected,and the mathematical evaluation model of principal component analysis(PCA)-distance discriminant analysis(DDA) is established and applied in the 12401 working face of Shangwan Coal Mine.The results show that the high-intensity mining damage can be divided into four categories:type I,type II,type III,and type IV,which correspond to four damage degrees:extremely high,high,medium,and low respectively;PCA-DDA model has high reliability,and the misjudgment rate is no more than 5%;The mining damage degree of the working face is high.The comprehensive use of large working face rapid advance method,overburden local grouting reinforcement method,and fracture zoning treatment method has realized the full cycle mining damage control of source reduction(working face),conduction process(overburden) and end treatment(surface).