A strategy was proposed to suppress the wear effect of tool in a polishing process. So, machining rate of work pieces in polishing process would keep constant. With this strategy applied to HDP, stable machining rate will bring more advantaged for precision engineering. This study mainly discussed by two parts. First, the planning of the rock-and-roll motion and a wear analysis for tools is talked about. Second is discussing about experiment further. In first part, in order to increase tool¡¦s lifetime, expanding tool wear region by rock-and-roll motion is adopted. Meanwhile, simulate the wear behavior to develop a method of removing tool¡¦s materials in expectant form. In second part, there are two targets to compare with first part, one is the effect of planning of tool¡¦s materials removing and the other is the improvement of suppressive wear effect for polishing tool and stabilizing removal rate of work pieces in rock-and-roll motion. The result of experiments shown that planning of tool¡¦s materials removing is working, the radius of curvature and roughness of tool is nearly stable, and there are some effects in removal rate on work pieces. The result of experiment of rock-and-roll motion verified that the wear theorem for tools and prove improvement of wear is working. So, the goal of suppression of wear effect for polishing tool by expanding tool wear region by rock-and-roll motion is feasible.