Abstract: In order to effectively address the technical challenges posed by severe deformation and instability in soft rock roadways, this paper focusing on the inlet roadway in the 52 mining area in Nanling Coal Industry, conducting analysis of the deformation and failure characteristics of soft rock roadway. Based on the stress-strain relationship of soft rock and its correlation with the strength changes of surrounding rock, a mechanical model is constructed to describe the failure zones in circular roadways. This model further reveals the elastoplastic deformation partitioning features of the surrounding rock in soft rock roadways and elaborates on the deformation and failure mechanisms in deep mine soft rock roadways. Utilizing the UDEC-Trigon model, a numerical model compliant with engineering scales is established, and a parameter correction method tailored for this model is proposed. Through simulation studies, a detailed exploration is conducted on the crack propagation characteristics, stress distribution patterns, and deformation behaviors of the surrounding rock in soft rock roadways. On this basis, a control technology and corresponding parameters are put forward for soft rock roadways, combining shallow and deep grouting with high-strength and high-pre-tightening force bolt-cable support. Field practice validation demonstrates that this technology significantly enhances the bearing capacity of the surrounding rock in soft rock roadways and effectively controls the deformation. The findings of this paper provide theoretical support and technical guidance for the reinforcement of surrounding rock in soft rock roadway under similar geological conditions.