Abstract: To further explore effective support strategies for three-soft large-deformation coal roadways, this study takes the typical failure issues of such roadways during the mining process in Teaching Mine No.2 as a case study.Firstly, simulation analysis methods are employed to investigate the causes of these failures.Based on the analysis results, a bolt-cable support scheme is selected, and its main parameters and design considerations are discussed in detail.Finally, the optimized support scheme is applied in practice.The results indicate that the proposed optimization significantly reduces roadway displacement, thereby improving support effectiveness and demonstrating practical application value.