本文对聚晶金刚石刀具的电火花机械复合磨削的过程及特点进行了论述，并通过分析和实验，指出非电参数和电参数对刃磨速度和刃磨质量的影响。 In this paper, the process and characteristics of EDM composite polycrystalline diamond cutting tools are discussed. Through analysis and experiment, the impact of non-electric parameters and electric parameters on sharpening speed and sharpening quality is pointed out.