Combined with the mine reality closely , to start with the theoretical analvsisand the laboratory experiment , in the process of resrarch and practice in this miningmethod,the new technology such access slicing structure ,roof contacted with loess,loadedlayers without cables and rock bolts ,ore passes with close timber square seta,and no-cuthole blasting etc. was used to reduce the consumption of cement and steel,simplify thetechnological process, improve the effectiveness of both roof contacted with filling andbladting, and increase the production capacity. This mining method has been deployed inthe mines.