Based on the full consideration of ground building protection and reasonable utilization of existing production system, combined with coal occurrence and geological condition, two mining plans were put forward about No. 4 mine deep mining in Zhangcun Mine, with analysis and comparison. The result showed that plan two was more reasonable, the deep area parted by F101 fault was divided into 2 mining areas, which was mined by inclined and dark shaft method, meeting the needs of design capability, avoiding new investment in building new ventilation shaft and ground building and shortening the building period.