Abstract: The stability of the upper and lower surrounding rock of Xiajiadian Gold Mine in Shaanxi Province is weak,it belongs to difficulttomine ore body.The test mining operation is conducted by adopting openstope method and caving method,the depletion loss rate is as high as 20％~ 40%,the ore grade is low,utilization rate of resources is low,and the technical and economic benefits are poor.In order to reduce the mining loss and dilution rate and improve economic efficiency,the upward horizontal slicing and filling method is adopted,the ore loss in the mining process is reduced effectively,the recovery rate is 94%,the dilution rate is 6%.The stope layout is simple,which could reduce the amount of preparatory cutting work,save the engineering cost,shorten the preparation period of stope and reduce the comprehensive cost of mining,besides that,the stoping process is simplified,labor productivity is improved,the consumption of productive or nonproductive materials is reduced and the lowcost production is realized.The upward horizontal slicing and filling method could also improve the utilization rate of resources and prolong the production life of mines,at the same time,the mine economic benefits is increased,which meets the requirements of green mine construction at present.

Key words: Upward horizontal slicing and filling method,Dilution rate,Loss rate,Economic benefit