Superhard materials play an important role in the industrial development， especially in the geological drilling industry， the development and application of superhard materials are more prominent. In the past， the drilling industry has a word saying that the kind of abrasive results in the kind of drilling equipment and craft， which fully explained their causal relationship. As the promotion of the variety， structure， performance， quality of the artificial diamond， the diamond bit has met the needs of geological drilling industry to a large extent， and rapidly promoted the development of drilling industry. In the meantime， the new requirements from drilling applications continue to accelerate further exploration in the superhard industry. In other words， they complement each other， promote each other and develop together. This paper describes the characteristics， types and properties of superhard products used in geological drilling industry according to large numbers of examples. The authors sincerely expect that the superhard materials will be more refined and updated in the future， and more innovation breakthroughs will be achieved.