Abstract: In order to solve the problem of resource waste caused by leaving wide coal pillars in the double lane excavation coal mining face, this paper develops a key technology for coal pillar strip mining that combines narrow coal pillars driving along the goaf, hydraulic fracturing roof cutting pressure relief, and anchor rod recovery. By driving roadway along the goaf, the wide coal pillar is divided into narrow coal pillar for protection and recyclable coal pillar. In the next mining face, the recyclable coal pillar is recovered, and only narrow coal pillar is left for protection to improve the coal pillar recovery rate. Based on the stress characteristics of the surrounding rock of the roadway, a reasonable arrangement of intervals along the goaf roadway is proposed, and hydraulic fracturing pressure relief is used to reduce the lateral support pressure acting on the coal pillars, achieving the goal of transferring high stress on the protective coal pillars and improving the stress state of the retained roadway, adopting a self-developed anchor rod recovery device to improve the efficiency of mining through goafs in the mining face. And the research results are applied in the 2202 mining face of Yingpanhao Coal Mine. After theoretical calculation, a narrow coal pillar width of 5 m is determined. Based on the distribution characteristics of the roof and floor rock layers, a hydraulic fracturing plan is developed, and a self-developed device is used for anchor rod recovery. The results show that after hydraulic fracturing, the mining pressure of the narrow coal pillar along the goaf roadway is not strong during the mining cycle of the mining face, and the stability of the surrounding rock is good. The recovery rate of the coal pillar increases by 85.8%, and the recovery rate of the anchor rod reaches 71%. This indicates that this technology can significantly improve the resource recovery rate and economic benefits of the double lane excavation mining face, and has good application and promotion value.