This paper briefly introduces the techno-economic benefits and environmental benefits of coalmine\'s underground gangue backfilling technique,an important technical breakthrough of green mining,and points out that this technique is the coordinative,healthy and sustainable development direction of our country\'s coal industry.

This thesis introduces that Mine Construction Company,Qiteihe Mining Industry Cleaned Coal Group adopted the advanced drilling mechanization equipment and technology in new gangue vertical shaft in Xintie Coal Mine and made the coal mine drilling equipment realize a leap.