Abstract: According to the geological conditions of deep mining in Quandian coal mine and deformation and failure characteristics of high stress soft rock roadway in fault zone,the article has deeply analyzed the damage causes of bearing structural instability in high stress and soft rock roadway under the influence of fault structures by laboratory theoretical analysis methods.Then the high strength and steady supporting technology has been put forward.Structure compensation was done for bearing structure of high-strength anchor network supporting with anchor cable and beam.The technology has been taken into industrial experiment and has been applied successfully in the supporting of Quandian mine.