Abstract: It is prone to some problems such as strata pressure, surrounding rock deformation when workface passes through abandoned roadway. The guiding ideology is the theory of mining pressure, which is established by the center of rock strata movement. The theoretical basis of the research is the theory of cut-roof short arm beam. We propose the supporting technology of cutting roof pressure relief + constant resistance large deformation anchor cable when the comprehensive workface passes through abandoned roadway. By the means of theoretical analysis and numerical simulation, we analyzed the stability of roadway surrounding rock, estimated periodic weighting step distance and structured theoretical mechanics model of the construction of abandoned roadway. Through the pre-splitting blasting and isopiestic technique, the peak of advanced support stress shifted to the depth of the coal wall. The constant resistance large deformation anchor cable controlled the deformation of surrounding rock. Numerical simulation results show that the pressure step distance of workface is about 23.4 m and the advanced support stress is located at 12 m in front of the coal wall.