Abstract: Through the exploitation of Zaoquan coal 120107, 120108 large inclined angle mechanized mining face and 120210 mechanized caving face, the reasons for dumping of hydraulic support in fully mechanized caving face are comprehensively analyzed, specific measures for the prevention of stent dumping and the basic methods for handling bracket are proposed, which provide a reference for the effective prevention and reduction of bracket dumping accidents in large inclined angle working face.