Abstract: Aiming at the problems of cumbersome operation procedures, high work intensity and low efficiency in the perforation link of traditional metal open-pit mine, the digital perforation system of openpit mine drilling rig is designed to form two modules of navigation positioning and information management and operation module. Each module is analyzed and described in detail. The system has many functions, such as accurate drilling positioning, automatic hole depth measurement, rock stratum identification, auto⁃ matic hole layout and so on, so as to effectively improve the production efficiency, which has an important reference for intelligent mining of open-pit mine.

Key words: metal open-pit, perforation link, digital perforation system