Due to the unclear ground pressure law of the withdrawal channel in the final mining and the insufficient roof control in the coal mining face, support crushing occurred in the withdrawal channel and slowed down the progress of the project.Taking the withdrawal roadway of No. 2006 Face in Anshan Mine as the research background, the average stress of coal pillar, the law of ground pressure and the support parameters of the withdrawal channel in the final section of the working face were studied and analyzed by theoretical analysis and numerical simulation. The results showed that with the decrease of residual coal pillar in the end mining section of working face, the stress of coal pillar increased gradually, and the increase of residual coal pillar stress increased. The influence of advanced abutment pressure on working face was more obvious. The influence range of advanced abutment pressure in the end mining section of the working face was 19 ~ 28 m, and the strong influence range was about 10 m. The peak stress was 3 ~ 5 m ahead of the coal wall of the working face. Combined with the analysis results of coal pillar load and ground pressure law in No. 2006 Face, the combined support scheme of ' anchor cable + anchor bolt ' in the withdrawal channel was proposed. The simulation results showed that the stress concentration of the withdrawal channel was not large, the maximum principal stress was 3.1 MPa, and the maximum principal stress of the side was 5.26 MPa, which was located in the middle area of the front. The optimized withdrawal channel support scheme had good control effect.