Abstract: Aiming at the challenges such as the damage caused by the upper group of coal mining to the lower group of coal roadway and the difficulty of support in the process of mining close-to-the-coal seam in Dengmautong Coal Mine, we applied the methods of field investigation and numerical simulation to systematically analyze the stress distribution characteristics and dynamic evolution law of the rock body around the lower group of coal roadway after the completion of the roadway excavation and during the period of the upper group of coal mining, and put forward the reinforcing support program by combining the original design elements of the support with the characteristics of the pipe-cable-combined structure.The engineering effect after adopting the reinforcing support scheme is analyzed through on-site engineering verification, and the results show that compared with the original support scheme, the development of the plastic zone of the surrounding rock has been significantly improved, and the reinforcing support scheme can effectively inhibit the deformation and development of the surrounding rock of the roadway, so as to ensure the stability and safety of the roadway.