As an important technical approach to control coal mine water hazard, drilling technology has been widely used. The application of coal mine water hazard control technologies, such as large diameter drainage well drilling, ground floor multi-branch horizontal wells by surface directional drilling and grouting reinforcement and reconstruction, underground directional drainage drilling, grouting to seal water inrush passage drilling and rapid rescue drilling of mine inrush disaster, has received good effects. Further development of drilling equipments for water control and the research on related drilling technologies should promote coal mine water hazard control.