To improve resource recovery efficiency, reduce ineffective loss, and ease the contradiction between mining and excavation, gob-side entry retaining technology has been gradually promoted and applied in mines. soft-mold concrete gob-side entry retaining in No. 3405 Face of Dayang Mine was taken as the engineering background, a numerical model was established and the evolution law of deviatoric stress in the surrounding rock of the gob-side entry retaining was systematically investigated, thereby revealing the failure mechanism of surrounding rock under the influence of mining-induced stress. Industrial tests showed that the maximum roadway deformation was controlled within 368 mm, and the surrounding rock deformation was generally slight, with the backfill body exhibiting good stability and sufficient safety reserve. The research could serve as a reference for similar working faces.