Abstract: In order to reduce the stope blasting cost of Sanshandao Gold Mine,and reduce the number of large boulders after blasting,the blasting method in panel stopehas improved.On the basis of many blasting tests we selected various parameters,such asthe diameter ofblasthole andexplosive cartridge,the charging structure and charging density,the direction of blasting,with these tests we find that when we using millisecond detonating tube,Φ45mm blasthole,smooth blasting hole with Φ32mm explosive cartridge,decoupling charge,the combination of direct initiation an indirect initiation;drop ore hole with Φ40mm explosivecartridge,coupling charge,indirect initiation;the normal mingingadopted symmetrical and upwardtype of blasting,the bordermining adopted the backward type of blasting.In the process of production we controlledthe specifications of the stopesuccessfully,and reduced the rate of large boulders,reduced the production cost,good results have been achieved.