Use high-quality steel to make the base material of pdc bit,the surface of the blade weld high-performance wear-resistant material,the use of computer software for the overall design of three-dimensional pdc bit,double asymmetric teeth straight blade,medium parabolic crow,long gage shape structure.Cutting edge in drilling,effectively improve the offensive pdc bit and drilling speed.the application of fluid dynamics analysis and numerical simulation of hydraulic flow field analysis technology to design,help to improve chip speed drill and anti-balling capacity.