Abstract: In order to study the deformation characteristics of the soft coal seam roadway and the cause of support failure, taking the large deformation of the two roadways in the mining roadway of 1304 working face of Yineng coal mine as an example, through laboratory experiments and theoretical analysis, the causes of the serious deformation of the two groups are analyzed.The results show that under high stress, the two coal seams are soft and unevenly stressed, and the surface deformation exhibits the characteristics of close approach of the two seams> roof sinking> bottom drum.Through the establishment of a self-stabilizing equilibrium mechanical model of the roadway, the support scheme of two-gang reinforced anchor cable+reinforced mesh+W steel belt is proposed.Numerical simulation and on-site monitoring show that the displacement of the top plate and the two gangs has become significantly smaller, and the serious problem of the gang has been further resolved.It can effectively maintain the stability of the roadway and ensure the safe construction.