Abstract: A kind of 3d rock particle simulation technology with the feasibility by academic expatiation and scientific computing way was put forward to experiment the high precision simulation drawing.Based on the traditional method,it creates gridding-cells,and the gridding-cells constitute the particles which were assigned to kinds of properties about the rock,ore and hole.Then according the fundamental of the ore drawing,the particles was simulated in the form of dynamic progress as time elapses in the computer program.The state of particles changed with the time and the stress analytical method to analyze the actual circs have the very important meaning to the present ore drawing analysis and simulation.