Abstract: Tunnel drilling is an effective method for deep resource exploration in major mines.Combined with the construction case of a lead-zinc mine in Cangyuan County，Lincang City，Yunnan Province，this paper discusses the use of new drilling equipment and cord-cored drilling technology to improve the exploration efficiency, aiming at the lead-zinc mine with a large coefficient of robustness and developed stratigraphic structure.The paper introduces the accumulated footage of more than 10 000 meters，and the newly increased output of 5.34 million yuan. It provides a technical reference for the construction of rope core drilling in similar mining areas.

Key words: tunnel, full hydraulic, drilling rig, rope core, drilling