The preparation of SiC platelets by means of mechanical grinding,classification and shape separation were discussed in this paper.The industrial SiC was pulverized with four kinds of grinding mills under different experimental conditions so as to find the optimum conditions under which a large amount of SiC platelets could be obtained.It is found that the amount of platelets in ground SiC varies with the kind of mills used,the force acted upon the SiC and the operation condition. It is necessary to carry ou...