Abstract: With increasing mining depth,the high-water tailings solidification downward filling mining method used in the Jinqingding Mining District becomes poor in mining efficiency and safety,leads to difficulty of ore management and high labour intensity.Based on the technical conditions of steeply inclined broken orebodies of the district,experimental research on the optimization of mining methods and construction process was conducted.The C material tailings downward approach filling mining method was decided as the optimal scheme,and has achieved good technical and economic indexes in field industrial test,include mining loss rate 4.43 %,mining dilution rate 3.52 %,single stope capacity 56.6 t/d.