According to the characteristics of large deformation and damage of surrounding rock under the influence of mining in the backtrack of the 20102 fully mechanized caving face in Wangjialing Coal Mine, under the condition of the original support scheme, the excavation roadway is analyzed in the mining face adjacent to the mining face. The characteristics of mine pressure in the front and rear sections are presented. The control measures of surrounding rock of roadway and the concrete reinforcement and support technology scheme under different conditions are proposed. On the surface of the monitoring results, the anchor truss combined support technology can ensure the stability of the roadway under the influence of dynamic pressure.