Abstract: According to the geological characteristics, testing results of granule flow parameters and the point-load strength of No 1 ore-body in Houhemushan iron mine, the rule of ore-rock falling and granule flowing are investigated and utilized. A high efficient scheme of sublevel caving without sill pillars is put forward, which adopts the induced falling techniques and footwall drifts and combined ore-drawing modes. The method has been put into operation, and better-applied effect is obtained now.