Stripping method, which was used for high grade ore before the mill plant was installed, has been replaced by the shrinkage method (filled with waste after ore is drawn out) when the mill plant was built and started operation.In this mine, both the foot-wall and the hanging wall are fragile and the ore itself is so badly fractured that the shrinkage method had to be changed gradually to the filled stoping method.At present, filled flat-back, underhand and shrinkage methods are used. However, we are faced with several problems with filling and it seems necessary to reconcider the stoping method.