Abstract: In order to improve the standardization and convenience of Openpit Bench Blasting design,the Openpit Bench Blasting design system was developed and studied.With Visual C++ as the development platform,the software adopts MFC framework and combines OpenGL threedimensional engine development technology to realize the establishment of software selfdevelopment ecology from the bottom.The field engineering practice shows that the blasting designer can easily realize the hole layout design in threedimensional environment and the blasting network design as well as accurate GPS hole layout through this system,and achieve good blasting effect,which improves the design quality and speed of step blasting.Intelligent blasting design system can realize digitalization,scientificalization,automation and high efficiency of mine blasting design,which is of great significance for open blasting.

Key words: 3dimensional,openair blasting,blasting design,automatic hole arrangement