In order to effectively control the reasonable deformation of the auxiliary roadway of the 23311 working face of Guandi Mine, the deformation instability mechanism of the composite roof roadway was analyzed, the surrounding rock support scheme of the 2311 working face composite roof roadway was proposed, and the displacement and anchor of the surrounding rock of the roadway were proposed. The cable axial force was continuously monitored. The results showed that the maximum deformation of the surrounding rock at the 1 m surrounding rock during the observation period was less than 70 mm, and the surrounding rock of the roof was affected within 5 m, and the surrounding rock was not disturbed. The maximum axial force of the top anchor was stable at 105 kN. The maximum axial force of the anchor bolt was stable at 84 kN, and the maximum axial force of the top angle anchor was stable at 61 kN. The axial force of each anchor with a large bearing space and a high safety factor, in the auxiliary roadway of 23511 working face, the surrounding rock deformation was reasonable under the existing support mode, which met the requirements of the roadway.