Abstract: Working face 207 in Tingnan coal mine 2 is the fifth working face in the second panel, adopts fully mechanized caving technology. Comprehensive measures such as pre-dredging before mining, pumping slime water to adjacent goaf in the process of stoping, low drainage and clear water at the back of the face, and ladder-type water discharging in the range of upward mining are adopted on the working face to completely solve the prevention and control of water damage during stoping.