Abstract: On the basis of analyzing support difficulties and the result of numerical simulation，surrounding rock control technology of open-off cut for fully mechanized coal mining face under the edge of gob area was put forward. The W-type steel bands and the hydraulic expansion anchors were applied to the permanent roof support with inserting steel tube as temporary roof support. The roadway's sides under goaf were not supported, but the roadway's sides under coal pillar were supported by high strength bolt. Field practical application shows that this technology can effectively control surrounding rock deformation and provide good conditions for open-off cut expansion and hydraulic support installation.