Abstract: Aiming at a serious problem of ore loss and dilution in one iron mine during its production, with the background of the iron mine, a similar material model test in laboratory was conducted.Then the parameters of ore-rock particle flow and the section shape of draw bodies were gained, and the indexes of ore loss and dilution among different advance of ore breaking were gained as well.The tests’ results have showed that the indexes are to be optimal when the independent advance of ore breaking ranges from 3.7 m to 4.2 m.Next, followed tracks were applied to ore-drawing-hole under different advance of ore breaking.According to the statistics of ore drawing amount as well as waste rock dilution, it was concluded that, when the height of draw body is constant, the larger the independent advance of ore breaking, the smaller the shape of draw body, the later the deadline for ore drawing, and the iron ore will be recovered, so this paper recommends that the optimum of independent advance of ore breaking in the iron mine is 4 m(2 m+2 m),and the mine can obtain better indexes of ore loss and dilution.