Abstract: The dynamic disaster induced by mining stress seriously restricts the safety and efficiency of tunneling. To solve the problem of induced dynamic disaster caused by sudden collapse of the side of broken surrounding rock roadway, according to the conditions and layout of roadway, consider the roof and floor for fracture distribution and mining disturbance, the field survey and theoretical analysis, numerical calculation and field monitoring means and methods, the comprehensive analysis of crushed surrounding rock of roadway deformation characteristics and support parameters optimization is carried out. The results show that under the action of gravity, the tensile stress area of rock roof is U shaped failure distribution. After the supporting of roadway, roof migration quantity greatly decreases, and slows the overburden rock integrity damage at the same time; under the influence of roadway excavation disturbance, structural instability of roof is more likely to occur. Roadway support can effectively hinder the movement of overburden roof and floor, alleviate the probability of rock mass disaster, effectively control dynamic disaster, and realize safe roadway excavation.