本文对金刚石孕锒钻头磨损机理进行了分析。讨论了目前钻探领域广泛使用的几种典型的金刚石孕锒钻头唇面形状的优缺点。最后从理论的角度改进了金刚石钻头的唇面形状。并阐述了制造该形状钻头的方法及该钻头的优越性。 In this paper, the mechanism of wear of diamond pregnant drill bits is analyzed. Discusses the advantages and disadvantages of several typical shapes of diamond facets used in drilling today. Finally, the lip shape of the diamond bit is improved theoretically. And explains the method of manufacturing the shape drill and the advantage of the drill.