Abstract: Drillability classification has not yet uniform，there are various methods for different targets，and more popular methods are fit to sedimentary rocks on the petroleum industry，but not suitable for metal mines.contrary to complex distribution of rock and ore in Barun Iron Mine，sampling of the igneous samples were representative of a wide range.with precision instruments，a comprehensive physical and mechanical properties are test，and drilling speed of cone drill at site is tested in a variety of rock mass.The results show that the drilling speed of the ore and rock can be physical and mechanical properties with good correlation in Barun Iron Mine.

Key words: Open pit, Cone drill, Rock, Drillability