Abstract: Aiming at the problems of difficult caving of hard roof and frequent occurrence of dynamic disasters and gas disasters in coal mines,takes the ZF1412 working face of Jiangjiahe Coal Mine as the engineering background, and studies the roof directional long borehole hydraulic fracturing technology for rock burst prevention. The technology is applied to weaken the hard roof and reduce stress concentration, so as to provide technical support for the safe mining of similar mines.By analyzing the geological conditions of the working face, the sandstone formation at 5～29 m is determined as the target fracturing layer. A staged fracturing scheme for high-level directional long boreholes is designed, and the retrogressive staged fracturing is implemented by adopting a packer string system. With microseismic monitoring as the core method, combined with pump pressure and flow monitoring as well as roadway stress and deformation monitoring, the fracturing and pressure relief effect is analyzed from the dimensions of microseismic energy, high-energy events and roadway deformation rate.After fracturing, the total microseismic energy in the fracturing area of the working face decreases by 55.8%, the number of high-energy microseismic events above 10⁴ J is reduced by 60%, and the deformation rate of the air return gateway drops by 58.3%. The stress concentration of the roof is significantly alleviated, and the roadway stability is greatly improved.This technology can effectively weaken the hard roof and form a fracture network to realize pressure relief, with remarkable rock burst prevention effect, which can provide a reference for similar mines in the Binchang mining area. In the follow-up, the number of fracturing boreholes can be increased and the fracturing intensity can be enhanced to further improve the governance effect.