Abstract: In order to solve the problems of severe mining pressure and large deformation of surrounding rock caused by the influence of adjacent working face dynamic pressure on the goaf retaining roadway in coal mines, a static expansion and cracking top cutting pressure relief technology is proposed on the basis of the existing goaf retaining roadway top cutting pressure relief technology. It is used to cut off the connection between the top plate of the goaf retaining roadway and the overlying rock layer top plate of the adjacent working face. Through theoretical analysis, calculation, and experimental measurement, the key technical parameters of static expansion and cracking top cutting pressure relief are determined and a specific technical plan is formulated. Through on-site application underground, the results show that the maximum height reduction of the retaining roadway is 1.05 m, the maximum width reduction is 0.65 m, and the maximum deformation of the surrounding rock of the roadway is significantly reduced, achieving the expected effect.