Aiming at the problem of large-scale gushing of floor water caused by the hard basic top suspension of the deep mining face in Xingdong Mine and the failure to fall in time, by analyzing the hydraulic fracturing pressure relief prevention mechanism and proposing the use of hydraulic fracturing pressure relief technology, the hard basic roof needs to be collapsed in time to compact the goaf. Mining pressure observations and field surveys showed that after using hydraulic fracturing and pressure-relief technology, the average cycle pressure step was 5.25 m, the dynamic load coefficient was 1.21 to 1.26, and the peak bearing pressure coefficient was 1.2 to 1.5, effectively reducing the working surface cycle, the stepping pressure, and the strength of the pressure. The roof could be timely collapsed to compact the goaf, which provided a certain experience for the prevention and treatment of water inrush in the goaf floor.