Underground is widely applied in geological prospecting, mining exploration and other activities; especially when the removal is limited by the difficult surface drilling in deep dissected topography, underground drilling is sure to be the preferred technique for further exploration to extend the service life of the mine. As for its equipment modularization, working environment, construction conditions and other aspects, the ability of drilling depths can’t meet the requirements of the increasing development of geological prospecting and construction management. At the same time, China’s professional standard of underground drilling needs to be supplemented and improved. Only by proper evaluation of construction conditions, analysis on construction characteristics and developing appropriate technical methods, can safety construction and drilling construction capability of underground drilling be efficiently guaranteed. In this paper, based on the drilling equipments, technology, construction environment and years of experience of underground drilling, the characteristics of full hydraulic underground drilling construction are summed up, common methods and convention of underground drilling are collected and organized into specification as regulation, which are used to guide the safe and efficient production, can provide the basis for safety management and also can provide reference for the supplement and perfection of industry standards.