Baed on the serious problem of mining pressure in the deep mining face, the law of deep mining pressure when mining 8266 working face in Yangdong Mine of Jizhong Energy Fengfeng Group was studied, and theoretically the new type of support under deep mining conditions was analyzed. Combined with the support to detect the resistance of the working face, the pressure step was 14 ~ 19 m in the working surface cycle, the average cycle to the pressure step was about 17.14 m, according to the field measured data, the normal mining period of the working face, it directly falled with the mining, and there was no overhanging phenomenon, with safe and efficient recovery mining.